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Finding the Fourth Proportional to 28,602, 39,472.38 and 16,030.80

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Solution

The fourth proportional to 28,602, 39,472.38 and 16,030.80 is: 22,123.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,602 : 39,472.38 = 16,030.80 : x
  2. Step 2: Convert to fraction form
    28,602/39,472.38 = 16,030.80/x
  3. Step 3: Cross multiply
    28,602x = 39,472.38 × 16,030.80
  4. Step 4: Simplify right side
    28,602x = 632,773,829.30
  5. Step 5: Solve for x
    x = 632,773,829.30/28,602
  6. Step 6: Final answer
    x = 22,123.41

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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.