Home / 18,816.90-28,060.91-16,487.74

Finding the Fourth Proportional to 18,816.90, 28,060.91 and 16,487.74

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Solution

The fourth proportional to 18,816.90, 28,060.91 and 16,487.74 is: 24,587.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.90 : 28,060.91 = 16,487.74 : x
  2. Step 2: Convert to fraction form
    18,816.90/28,060.91 = 16,487.74/x
  3. Step 3: Cross multiply
    18,816.90x = 28,060.91 × 16,487.74
  4. Step 4: Simplify right side
    18,816.90x = 462,660,905.80
  5. Step 5: Solve for x
    x = 462,660,905.80/18,816.90
  6. Step 6: Final answer
    x = 24,587.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.