Home / 28,374.28-39,150.56-16,436.90

Finding the Fourth Proportional to 28,374.28, 39,150.56 and 16,436.90

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Solution

The fourth proportional to 28,374.28, 39,150.56 and 16,436.90 is: 22,679.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374.28 : 39,150.56 = 16,436.90 : x
  2. Step 2: Convert to fraction form
    28,374.28/39,150.56 = 16,436.90/x
  3. Step 3: Cross multiply
    28,374.28x = 39,150.56 × 16,436.90
  4. Step 4: Simplify right side
    28,374.28x = 643,513,978.63
  5. Step 5: Solve for x
    x = 643,513,978.63/28,374.28
  6. Step 6: Final answer
    x = 22,679.48

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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.