Home / 27,647.50-38,152.32-15,711.94

Finding the Fourth Proportional to 27,647.50, 38,152.32 and 15,711.94

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Solution

The fourth proportional to 27,647.50, 38,152.32 and 15,711.94 is: 21,681.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,647.50 : 38,152.32 = 15,711.94 : x
  2. Step 2: Convert to fraction form
    27,647.50/38,152.32 = 15,711.94/x
  3. Step 3: Cross multiply
    27,647.50x = 38,152.32 × 15,711.94
  4. Step 4: Simplify right side
    27,647.50x = 599,446,962.70
  5. Step 5: Solve for x
    x = 599,446,962.70/27,647.50
  6. Step 6: Final answer
    x = 21,681.78

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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.