Home / 28,343.74-39,112.70-15,594.74

Finding the Fourth Proportional to 28,343.74, 39,112.70 and 15,594.74

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Solution

The fourth proportional to 28,343.74, 39,112.70 and 15,594.74 is: 21,519.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,343.74 : 39,112.70 = 15,594.74 : x
  2. Step 2: Convert to fraction form
    28,343.74/39,112.70 = 15,594.74/x
  3. Step 3: Cross multiply
    28,343.74x = 39,112.70 × 15,594.74
  4. Step 4: Simplify right side
    28,343.74x = 609,952,387.20
  5. Step 5: Solve for x
    x = 609,952,387.20/28,343.74
  6. Step 6: Final answer
    x = 21,519.83

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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.