Home / 30,451.51-42,022.96-17,022.75

Finding the Fourth Proportional to 30,451.51, 42,022.96 and 17,022.75

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Solution

The fourth proportional to 30,451.51, 42,022.96 and 17,022.75 is: 23,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,451.51 : 42,022.96 = 17,022.75 : x
  2. Step 2: Convert to fraction form
    30,451.51/42,022.96 = 17,022.75/x
  3. Step 3: Cross multiply
    30,451.51x = 42,022.96 × 17,022.75
  4. Step 4: Simplify right side
    30,451.51x = 715,346,342.34
  5. Step 5: Solve for x
    x = 715,346,342.34/30,451.51
  6. Step 6: Final answer
    x = 23,491.33

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Half scale
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Double scale
Find fourth proportional to 30,452.51, 42,024.34 and 17,023.75
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.