Home / 20,442.02-28,189.26-19,251.45

Finding the Fourth Proportional to 20,442.02, 28,189.26 and 19,251.45

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Solution

The fourth proportional to 20,442.02, 28,189.26 and 19,251.45 is: 26,547.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442.02 : 28,189.26 = 19,251.45 : x
  2. Step 2: Convert to fraction form
    20,442.02/28,189.26 = 19,251.45/x
  3. Step 3: Cross multiply
    20,442.02x = 28,189.26 × 19,251.45
  4. Step 4: Simplify right side
    20,442.02x = 542,684,129.43
  5. Step 5: Solve for x
    x = 542,684,129.43/20,442.02
  6. Step 6: Final answer
    x = 26,547.49

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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.