Home / 39,254.32-54,171.66-21,349.72

Finding the Fourth Proportional to 39,254.32, 54,171.66 and 21,349.72

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Solution

The fourth proportional to 39,254.32, 54,171.66 and 21,349.72 is: 29,462.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,254.32 : 54,171.66 = 21,349.72 : x
  2. Step 2: Convert to fraction form
    39,254.32/54,171.66 = 21,349.72/x
  3. Step 3: Cross multiply
    39,254.32x = 54,171.66 × 21,349.72
  4. Step 4: Simplify right side
    39,254.32x = 1,156,549,772.94
  5. Step 5: Solve for x
    x = 1,156,549,772.94/39,254.32
  6. Step 6: Final answer
    x = 29,462.99

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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.