Home / 28,070.32-38,743.56-18,511.93

Finding the Fourth Proportional to 28,070.32, 38,743.56 and 18,511.93

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Solution

The fourth proportional to 28,070.32, 38,743.56 and 18,511.93 is: 25,550.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070.32 : 38,743.56 = 18,511.93 : x
  2. Step 2: Convert to fraction form
    28,070.32/38,743.56 = 18,511.93/x
  3. Step 3: Cross multiply
    28,070.32x = 38,743.56 × 18,511.93
  4. Step 4: Simplify right side
    28,070.32x = 717,218,176.00
  5. Step 5: Solve for x
    x = 717,218,176.00/28,070.32
  6. Step 6: Final answer
    x = 25,550.76

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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.