Home / 38,123.10-52,611.99-21,126.99

Finding the Fourth Proportional to 38,123.10, 52,611.99 and 21,126.99

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Solution

The fourth proportional to 38,123.10, 52,611.99 and 21,126.99 is: 29,156.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,123.10 : 52,611.99 = 21,126.99 : x
  2. Step 2: Convert to fraction form
    38,123.10/52,611.99 = 21,126.99/x
  3. Step 3: Cross multiply
    38,123.10x = 52,611.99 × 21,126.99
  4. Step 4: Simplify right side
    38,123.10x = 1,111,532,986.61
  5. Step 5: Solve for x
    x = 1,111,532,986.61/38,123.10
  6. Step 6: Final answer
    x = 29,156.42

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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.