Home / 27,878.04-38,471.22-15,302.52

Finding the Fourth Proportional to 27,878.04, 38,471.22 and 15,302.52

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Solution

The fourth proportional to 27,878.04, 38,471.22 and 15,302.52 is: 21,117.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,878.04 : 38,471.22 = 15,302.52 : x
  2. Step 2: Convert to fraction form
    27,878.04/38,471.22 = 15,302.52/x
  3. Step 3: Cross multiply
    27,878.04x = 38,471.22 × 15,302.52
  4. Step 4: Simplify right side
    27,878.04x = 588,706,613.47
  5. Step 5: Solve for x
    x = 588,706,613.47/27,878.04
  6. Step 6: Final answer
    x = 21,117.22

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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.