Home / 28,472.31-39,279.74-19,043.91

Finding the Fourth Proportional to 28,472.31, 39,279.74 and 19,043.91

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Solution

The fourth proportional to 28,472.31, 39,279.74 and 19,043.91 is: 26,272.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,472.31 : 39,279.74 = 19,043.91 : x
  2. Step 2: Convert to fraction form
    28,472.31/39,279.74 = 19,043.91/x
  3. Step 3: Cross multiply
    28,472.31x = 39,279.74 × 19,043.91
  4. Step 4: Simplify right side
    28,472.31x = 748,039,738.16
  5. Step 5: Solve for x
    x = 748,039,738.16/28,472.31
  6. Step 6: Final answer
    x = 26,272.53

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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.