Home / 28,276.68-42,350.42-13,495.98

Finding the Fourth Proportional to 28,276.68, 42,350.42 and 13,495.98

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Solution

The fourth proportional to 28,276.68, 42,350.42 and 13,495.98 is: 20,213.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,276.68 : 42,350.42 = 13,495.98 : x
  2. Step 2: Convert to fraction form
    28,276.68/42,350.42 = 13,495.98/x
  3. Step 3: Cross multiply
    28,276.68x = 42,350.42 × 13,495.98
  4. Step 4: Simplify right side
    28,276.68x = 571,560,353.83
  5. Step 5: Solve for x
    x = 571,560,353.83/28,276.68
  6. Step 6: Final answer
    x = 20,213.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.