Home / 28,652.90-42,979.16-15,588.31

Finding the Fourth Proportional to 28,652.90, 42,979.16 and 15,588.31

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Solution

The fourth proportional to 28,652.90, 42,979.16 and 15,588.31 is: 23,382.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,652.90 : 42,979.16 = 15,588.31 : x
  2. Step 2: Convert to fraction form
    28,652.90/42,979.16 = 15,588.31/x
  3. Step 3: Cross multiply
    28,652.90x = 42,979.16 × 15,588.31
  4. Step 4: Simplify right side
    28,652.90x = 669,972,520.25
  5. Step 5: Solve for x
    x = 669,972,520.25/28,652.90
  6. Step 6: Final answer
    x = 23,382.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.