Home / 38,876.28-53,648.10-21,881.46

Finding the Fourth Proportional to 38,876.28, 53,648.10 and 21,881.46

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Solution

The fourth proportional to 38,876.28, 53,648.10 and 21,881.46 is: 30,195.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,876.28 : 53,648.10 = 21,881.46 : x
  2. Step 2: Convert to fraction form
    38,876.28/53,648.10 = 21,881.46/x
  3. Step 3: Cross multiply
    38,876.28x = 53,648.10 × 21,881.46
  4. Step 4: Simplify right side
    38,876.28x = 1,173,898,754.23
  5. Step 5: Solve for x
    x = 1,173,898,754.23/38,876.28
  6. Step 6: Final answer
    x = 30,195.76

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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.