Home / 30,723.66-42,398.74-17,295.12

Finding the Fourth Proportional to 30,723.66, 42,398.74 and 17,295.12

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Solution

The fourth proportional to 30,723.66, 42,398.74 and 17,295.12 is: 23,867.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,723.66 : 42,398.74 = 17,295.12 : x
  2. Step 2: Convert to fraction form
    30,723.66/42,398.74 = 17,295.12/x
  3. Step 3: Cross multiply
    30,723.66x = 42,398.74 × 17,295.12
  4. Step 4: Simplify right side
    30,723.66x = 733,291,317.77
  5. Step 5: Solve for x
    x = 733,291,317.77/30,723.66
  6. Step 6: Final answer
    x = 23,867.32

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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.