Home / 18,721.95-28,000.86-16,294.38

Finding the Fourth Proportional to 18,721.95, 28,000.86 and 16,294.38

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Solution

The fourth proportional to 18,721.95, 28,000.86 and 16,294.38 is: 24,370.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.95 : 28,000.86 = 16,294.38 : x
  2. Step 2: Convert to fraction form
    18,721.95/28,000.86 = 16,294.38/x
  3. Step 3: Cross multiply
    18,721.95x = 28,000.86 × 16,294.38
  4. Step 4: Simplify right side
    18,721.95x = 456,256,653.17
  5. Step 5: Solve for x
    x = 456,256,653.17/18,721.95
  6. Step 6: Final answer
    x = 24,370.15

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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.