Home / 30,214.48-45,317.04-15,434.32

Finding the Fourth Proportional to 30,214.48, 45,317.04 and 15,434.32

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Solution

The fourth proportional to 30,214.48, 45,317.04 and 15,434.32 is: 23,149.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,214.48 : 45,317.04 = 15,434.32 : x
  2. Step 2: Convert to fraction form
    30,214.48/45,317.04 = 15,434.32/x
  3. Step 3: Cross multiply
    30,214.48x = 45,317.04 × 15,434.32
  4. Step 4: Simplify right side
    30,214.48x = 699,437,696.81
  5. Step 5: Solve for x
    x = 699,437,696.81/30,214.48
  6. Step 6: Final answer
    x = 23,149.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.