Home / 28,663.60-42,995.40-16,853.80

Finding the Fourth Proportional to 28,663.60, 42,995.40 and 16,853.80

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Solution

The fourth proportional to 28,663.60, 42,995.40 and 16,853.80 is: 25,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,663.60 : 42,995.40 = 16,853.80 : x
  2. Step 2: Convert to fraction form
    28,663.60/42,995.40 = 16,853.80/x
  3. Step 3: Cross multiply
    28,663.60x = 42,995.40 × 16,853.80
  4. Step 4: Simplify right side
    28,663.60x = 724,635,872.52
  5. Step 5: Solve for x
    x = 724,635,872.52/28,663.60
  6. Step 6: Final answer
    x = 25,280.70

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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.