Home / 28,452.47-39,242.20-18,244.47

Finding the Fourth Proportional to 28,452.47, 39,242.20 and 18,244.47

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Solution

The fourth proportional to 28,452.47, 39,242.20 and 18,244.47 is: 25,163.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.47 : 39,242.20 = 18,244.47 : x
  2. Step 2: Convert to fraction form
    28,452.47/39,242.20 = 18,244.47/x
  3. Step 3: Cross multiply
    28,452.47x = 39,242.20 × 18,244.47
  4. Step 4: Simplify right side
    28,452.47x = 715,953,095.02
  5. Step 5: Solve for x
    x = 715,953,095.02/28,452.47
  6. Step 6: Final answer
    x = 25,163.13

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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.