Home / 38,123.61-52,612.68-21,127.50

Finding the Fourth Proportional to 38,123.61, 52,612.68 and 21,127.50

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Solution

The fourth proportional to 38,123.61, 52,612.68 and 21,127.50 is: 29,157.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,123.61 : 52,612.68 = 21,127.50 : x
  2. Step 2: Convert to fraction form
    38,123.61/52,612.68 = 21,127.50/x
  3. Step 3: Cross multiply
    38,123.61x = 52,612.68 × 21,127.50
  4. Step 4: Simplify right side
    38,123.61x = 1,111,574,396.70
  5. Step 5: Solve for x
    x = 1,111,574,396.70/38,123.61
  6. Step 6: Final answer
    x = 29,157.11

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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.