Home / 28,145.91-42,175.11-10,606.17

Finding the Fourth Proportional to 28,145.91, 42,175.11 and 10,606.17

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Solution

The fourth proportional to 28,145.91, 42,175.11 and 10,606.17 is: 15,892.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,145.91 : 42,175.11 = 10,606.17 : x
  2. Step 2: Convert to fraction form
    28,145.91/42,175.11 = 10,606.17/x
  3. Step 3: Cross multiply
    28,145.91x = 42,175.11 × 10,606.17
  4. Step 4: Simplify right side
    28,145.91x = 447,316,386.43
  5. Step 5: Solve for x
    x = 447,316,386.43/28,145.91
  6. Step 6: Final answer
    x = 15,892.77

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1.5x scale

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.