Home / 23,280.75-32,105.09-15,641.28

Finding the Fourth Proportional to 23,280.75, 32,105.09 and 15,641.28

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Solution

The fourth proportional to 23,280.75, 32,105.09 and 15,641.28 is: 21,569.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,280.75 : 32,105.09 = 15,641.28 : x
  2. Step 2: Convert to fraction form
    23,280.75/32,105.09 = 15,641.28/x
  3. Step 3: Cross multiply
    23,280.75x = 32,105.09 × 15,641.28
  4. Step 4: Simplify right side
    23,280.75x = 502,164,702.12
  5. Step 5: Solve for x
    x = 502,164,702.12/23,280.75
  6. Step 6: Final answer
    x = 21,569.96

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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.