Home / 28,324.68-39,084.57-15,575.76

Finding the Fourth Proportional to 28,324.68, 39,084.57 and 15,575.76

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Solution

The fourth proportional to 28,324.68, 39,084.57 and 15,575.76 is: 21,492.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324.68 : 39,084.57 = 15,575.76 : x
  2. Step 2: Convert to fraction form
    28,324.68/39,084.57 = 15,575.76/x
  3. Step 3: Cross multiply
    28,324.68x = 39,084.57 × 15,575.76
  4. Step 4: Simplify right side
    28,324.68x = 608,771,882.02
  5. Step 5: Solve for x
    x = 608,771,882.02/28,324.68
  6. Step 6: Final answer
    x = 21,492.63

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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.