Home / 38,275.88-52,820.57-21,279.58

Finding the Fourth Proportional to 38,275.88, 52,820.57 and 21,279.58

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Solution

The fourth proportional to 38,275.88, 52,820.57 and 21,279.58 is: 29,365.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,275.88 : 52,820.57 = 21,279.58 : x
  2. Step 2: Convert to fraction form
    38,275.88/52,820.57 = 21,279.58/x
  3. Step 3: Cross multiply
    38,275.88x = 52,820.57 × 21,279.58
  4. Step 4: Simplify right side
    38,275.88x = 1,123,999,466.11
  5. Step 5: Solve for x
    x = 1,123,999,466.11/38,275.88
  6. Step 6: Final answer
    x = 29,365.74

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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.