Home / 39,376.22-54,337.98-21,471.57

Finding the Fourth Proportional to 39,376.22, 54,337.98 and 21,471.57

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Solution

The fourth proportional to 39,376.22, 54,337.98 and 21,471.57 is: 29,630.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,376.22 : 54,337.98 = 21,471.57 : x
  2. Step 2: Convert to fraction form
    39,376.22/54,337.98 = 21,471.57/x
  3. Step 3: Cross multiply
    39,376.22x = 54,337.98 × 21,471.57
  4. Step 4: Simplify right side
    39,376.22x = 1,166,721,741.23
  5. Step 5: Solve for x
    x = 1,166,721,741.23/39,376.22
  6. Step 6: Final answer
    x = 29,630.11

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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.