Home / 28,195.90-38,901.50-16,257.62

Finding the Fourth Proportional to 28,195.90, 38,901.50 and 16,257.62

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Solution

The fourth proportional to 28,195.90, 38,901.50 and 16,257.62 is: 22,430.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195.90 : 38,901.50 = 16,257.62 : x
  2. Step 2: Convert to fraction form
    28,195.90/38,901.50 = 16,257.62/x
  3. Step 3: Cross multiply
    28,195.90x = 38,901.50 × 16,257.62
  4. Step 4: Simplify right side
    28,195.90x = 632,445,804.43
  5. Step 5: Solve for x
    x = 632,445,804.43/28,195.90
  6. Step 6: Final answer
    x = 22,430.42

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Double scale
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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.