Home / 38,276.31-52,814.92-21,280.08

Finding the Fourth Proportional to 38,276.31, 52,814.92 and 21,280.08

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Solution

The fourth proportional to 38,276.31, 52,814.92 and 21,280.08 is: 29,362.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,276.31 : 52,814.92 = 21,280.08 : x
  2. Step 2: Convert to fraction form
    38,276.31/52,814.92 = 21,280.08/x
  3. Step 3: Cross multiply
    38,276.31x = 52,814.92 × 21,280.08
  4. Step 4: Simplify right side
    38,276.31x = 1,123,905,722.79
  5. Step 5: Solve for x
    x = 1,123,905,722.79/38,276.31
  6. Step 6: Final answer
    x = 29,362.96

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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.