Home / 39,331.65-54,277.19-21,426.28

Finding the Fourth Proportional to 39,331.65, 54,277.19 and 21,426.28

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Solution

The fourth proportional to 39,331.65, 54,277.19 and 21,426.28 is: 29,568.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,331.65 : 54,277.19 = 21,426.28 : x
  2. Step 2: Convert to fraction form
    39,331.65/54,277.19 = 21,426.28/x
  3. Step 3: Cross multiply
    39,331.65x = 54,277.19 × 21,426.28
  4. Step 4: Simplify right side
    39,331.65x = 1,162,958,228.60
  5. Step 5: Solve for x
    x = 1,162,958,228.60/39,331.65
  6. Step 6: Final answer
    x = 29,568.00

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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.