Home / 28,343.32-39,113.96-15,596.15

Finding the Fourth Proportional to 28,343.32, 39,113.96 and 15,596.15

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Solution

The fourth proportional to 28,343.32, 39,113.96 and 15,596.15 is: 21,522.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,343.32 : 39,113.96 = 15,596.15 : x
  2. Step 2: Convert to fraction form
    28,343.32/39,113.96 = 15,596.15/x
  3. Step 3: Cross multiply
    28,343.32x = 39,113.96 × 15,596.15
  4. Step 4: Simplify right side
    28,343.32x = 610,026,913.70
  5. Step 5: Solve for x
    x = 610,026,913.70/28,343.32
  6. Step 6: Final answer
    x = 21,522.78

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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.