Home / 28,176.10-38,878.95-15,600.82

Finding the Fourth Proportional to 28,176.10, 38,878.95 and 15,600.82

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Solution

The fourth proportional to 28,176.10, 38,878.95 and 15,600.82 is: 21,526.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.10 : 38,878.95 = 15,600.82 : x
  2. Step 2: Convert to fraction form
    28,176.10/38,878.95 = 15,600.82/x
  3. Step 3: Cross multiply
    28,176.10x = 38,878.95 × 15,600.82
  4. Step 4: Simplify right side
    28,176.10x = 606,543,500.74
  5. Step 5: Solve for x
    x = 606,543,500.74/28,176.10
  6. Step 6: Final answer
    x = 21,526.88

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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.