Home / 28,581.68-42,878.28-10,126.64

Finding the Fourth Proportional to 28,581.68, 42,878.28 and 10,126.64

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Solution

The fourth proportional to 28,581.68, 42,878.28 and 10,126.64 is: 15,192.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,581.68 : 42,878.28 = 10,126.64 : x
  2. Step 2: Convert to fraction form
    28,581.68/42,878.28 = 10,126.64/x
  3. Step 3: Cross multiply
    28,581.68x = 42,878.28 × 10,126.64
  4. Step 4: Simplify right side
    28,581.68x = 434,212,905.38
  5. Step 5: Solve for x
    x = 434,212,905.38/28,581.68
  6. Step 6: Final answer
    x = 15,192.00

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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.