Home / 28,918.20-39,905.52-16,342.14

Finding the Fourth Proportional to 28,918.20, 39,905.52 and 16,342.14

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Solution

The fourth proportional to 28,918.20, 39,905.52 and 16,342.14 is: 22,551.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918.20 : 39,905.52 = 16,342.14 : x
  2. Step 2: Convert to fraction form
    28,918.20/39,905.52 = 16,342.14/x
  3. Step 3: Cross multiply
    28,918.20x = 39,905.52 × 16,342.14
  4. Step 4: Simplify right side
    28,918.20x = 652,141,594.61
  5. Step 5: Solve for x
    x = 652,141,594.61/28,918.20
  6. Step 6: Final answer
    x = 22,551.25

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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.