Home / 19,975.20-29,937.60-10,117.20

Finding the Fourth Proportional to 19,975.20, 29,937.60 and 10,117.20

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Solution

The fourth proportional to 19,975.20, 29,937.60 and 10,117.20 is: 15,163.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.20 : 29,937.60 = 10,117.20 : x
  2. Step 2: Convert to fraction form
    19,975.20/29,937.60 = 10,117.20/x
  3. Step 3: Cross multiply
    19,975.20x = 29,937.60 × 10,117.20
  4. Step 4: Simplify right side
    19,975.20x = 302,884,686.72
  5. Step 5: Solve for x
    x = 302,884,686.72/19,975.20
  6. Step 6: Final answer
    x = 15,163.04

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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.