Home / 27,999.93-38,689.11-22,381.08

Finding the Fourth Proportional to 27,999.93, 38,689.11 and 22,381.08

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Solution

The fourth proportional to 27,999.93, 38,689.11 and 22,381.08 is: 30,925.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,999.93 : 38,689.11 = 22,381.08 : x
  2. Step 2: Convert to fraction form
    27,999.93/38,689.11 = 22,381.08/x
  3. Step 3: Cross multiply
    27,999.93x = 38,689.11 × 22,381.08
  4. Step 4: Simplify right side
    27,999.93x = 865,904,066.04
  5. Step 5: Solve for x
    x = 865,904,066.04/27,999.93
  6. Step 6: Final answer
    x = 30,925.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.