Home / 28,648.61-42,971.97-11,781.04

Finding the Fourth Proportional to 28,648.61, 42,971.97 and 11,781.04

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Solution

The fourth proportional to 28,648.61, 42,971.97 and 11,781.04 is: 17,671.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,648.61 : 42,971.97 = 11,781.04 : x
  2. Step 2: Convert to fraction form
    28,648.61/42,971.97 = 11,781.04/x
  3. Step 3: Cross multiply
    28,648.61x = 42,971.97 × 11,781.04
  4. Step 4: Simplify right side
    28,648.61x = 506,254,434.20
  5. Step 5: Solve for x
    x = 506,254,434.20/28,648.61
  6. Step 6: Final answer
    x = 17,671.17

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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.