Home / 39,330.60-54,277.14-21,426.60

Finding the Fourth Proportional to 39,330.60, 54,277.14 and 21,426.60

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Solution

The fourth proportional to 39,330.60, 54,277.14 and 21,426.60 is: 29,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,330.60 : 54,277.14 = 21,426.60 : x
  2. Step 2: Convert to fraction form
    39,330.60/54,277.14 = 21,426.60/x
  3. Step 3: Cross multiply
    39,330.60x = 54,277.14 × 21,426.60
  4. Step 4: Simplify right side
    39,330.60x = 1,162,974,567.92
  5. Step 5: Solve for x
    x = 1,162,974,567.92/39,330.60
  6. Step 6: Final answer
    x = 29,569.20

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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.