Home / 28,159.92-42,254.21-17,628.14

Finding the Fourth Proportional to 28,159.92, 42,254.21 and 17,628.14

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Solution

The fourth proportional to 28,159.92, 42,254.21 and 17,628.14 is: 26,451.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,159.92 : 42,254.21 = 17,628.14 : x
  2. Step 2: Convert to fraction form
    28,159.92/42,254.21 = 17,628.14/x
  3. Step 3: Cross multiply
    28,159.92x = 42,254.21 × 17,628.14
  4. Step 4: Simplify right side
    28,159.92x = 744,862,830.06
  5. Step 5: Solve for x
    x = 744,862,830.06/28,159.92
  6. Step 6: Final answer
    x = 26,451.17

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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.