Home / 20,373.02-28,114.52-11,420.52

Finding the Fourth Proportional to 20,373.02, 28,114.52 and 11,420.52

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Solution

The fourth proportional to 20,373.02, 28,114.52 and 11,420.52 is: 15,760.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373.02 : 28,114.52 = 11,420.52 : x
  2. Step 2: Convert to fraction form
    20,373.02/28,114.52 = 11,420.52/x
  3. Step 3: Cross multiply
    20,373.02x = 28,114.52 × 11,420.52
  4. Step 4: Simplify right side
    20,373.02x = 321,082,437.95
  5. Step 5: Solve for x
    x = 321,082,437.95/20,373.02
  6. Step 6: Final answer
    x = 15,760.18

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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.