Home / 39,931.49-59,902.63-13,629.17

Finding the Fourth Proportional to 39,931.49, 59,902.63 and 13,629.17

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Solution

The fourth proportional to 39,931.49, 59,902.63 and 13,629.17 is: 20,445.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,931.49 : 59,902.63 = 13,629.17 : x
  2. Step 2: Convert to fraction form
    39,931.49/59,902.63 = 13,629.17/x
  3. Step 3: Cross multiply
    39,931.49x = 59,902.63 × 13,629.17
  4. Step 4: Simplify right side
    39,931.49x = 816,422,794.13
  5. Step 5: Solve for x
    x = 816,422,794.13/39,931.49
  6. Step 6: Final answer
    x = 20,445.59

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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.