Home / 28,132.84-42,174.18-18,141.16

Finding the Fourth Proportional to 28,132.84, 42,174.18 and 18,141.16

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Solution

The fourth proportional to 28,132.84, 42,174.18 and 18,141.16 is: 27,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,132.84 : 42,174.18 = 18,141.16 : x
  2. Step 2: Convert to fraction form
    28,132.84/42,174.18 = 18,141.16/x
  3. Step 3: Cross multiply
    28,132.84x = 42,174.18 × 18,141.16
  4. Step 4: Simplify right side
    28,132.84x = 765,088,547.25
  5. Step 5: Solve for x
    x = 765,088,547.25/28,132.84
  6. Step 6: Final answer
    x = 27,195.57

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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.