Home / 28,123.14-38,810.00-15,377.14

Finding the Fourth Proportional to 28,123.14, 38,810.00 and 15,377.14

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Solution

The fourth proportional to 28,123.14, 38,810.00 and 15,377.14 is: 21,220.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,123.14 : 38,810.00 = 15,377.14 : x
  2. Step 2: Convert to fraction form
    28,123.14/38,810.00 = 15,377.14/x
  3. Step 3: Cross multiply
    28,123.14x = 38,810.00 × 15,377.14
  4. Step 4: Simplify right side
    28,123.14x = 596,786,866.42
  5. Step 5: Solve for x
    x = 596,786,866.42/28,123.14
  6. Step 6: Final answer
    x = 21,220.49

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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.