Home / 28,623.62-39,501.22-15,876.38

Finding the Fourth Proportional to 28,623.62, 39,501.22 and 15,876.38

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Solution

The fourth proportional to 28,623.62, 39,501.22 and 15,876.38 is: 21,909.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,623.62 : 39,501.22 = 15,876.38 : x
  2. Step 2: Convert to fraction form
    28,623.62/39,501.22 = 15,876.38/x
  3. Step 3: Cross multiply
    28,623.62x = 39,501.22 × 15,876.38
  4. Step 4: Simplify right side
    28,623.62x = 627,136,444.53
  5. Step 5: Solve for x
    x = 627,136,444.53/28,623.62
  6. Step 6: Final answer
    x = 21,909.76

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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.