Home / 39,575.79-54,614.69-21,426.71

Finding the Fourth Proportional to 39,575.79, 54,614.69 and 21,426.71

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Solution

The fourth proportional to 39,575.79, 54,614.69 and 21,426.71 is: 29,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,575.79 : 54,614.69 = 21,426.71 : x
  2. Step 2: Convert to fraction form
    39,575.79/54,614.69 = 21,426.71/x
  3. Step 3: Cross multiply
    39,575.79x = 54,614.69 × 21,426.71
  4. Step 4: Simplify right side
    39,575.79x = 1,170,212,744.16
  5. Step 5: Solve for x
    x = 1,170,212,744.16/39,575.79
  6. Step 6: Final answer
    x = 29,568.90

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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.