Home / 39,406.10-54,380.60-21,501.48

Finding the Fourth Proportional to 39,406.10, 54,380.60 and 21,501.48

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Solution

The fourth proportional to 39,406.10, 54,380.60 and 21,501.48 is: 29,672.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,406.10 : 54,380.60 = 21,501.48 : x
  2. Step 2: Convert to fraction form
    39,406.10/54,380.60 = 21,501.48/x
  3. Step 3: Cross multiply
    39,406.10x = 54,380.60 × 21,501.48
  4. Step 4: Simplify right side
    39,406.10x = 1,169,263,275.78
  5. Step 5: Solve for x
    x = 1,169,263,275.78/39,406.10
  6. Step 6: Final answer
    x = 29,672.14

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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.