Home / 28,728.61-39,641.20-16,150.93

Finding the Fourth Proportional to 28,728.61, 39,641.20 and 16,150.93

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Solution

The fourth proportional to 28,728.61, 39,641.20 and 16,150.93 is: 22,285.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728.61 : 39,641.20 = 16,150.93 : x
  2. Step 2: Convert to fraction form
    28,728.61/39,641.20 = 16,150.93/x
  3. Step 3: Cross multiply
    28,728.61x = 39,641.20 × 16,150.93
  4. Step 4: Simplify right side
    28,728.61x = 640,242,246.32
  5. Step 5: Solve for x
    x = 640,242,246.32/28,728.61
  6. Step 6: Final answer
    x = 22,285.88

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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.