Home / 20,342.02-28,085.03-13,966.55

Finding the Fourth Proportional to 20,342.02, 28,085.03 and 13,966.55

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Solution

The fourth proportional to 20,342.02, 28,085.03 and 13,966.55 is: 19,282.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,342.02 : 28,085.03 = 13,966.55 : x
  2. Step 2: Convert to fraction form
    20,342.02/28,085.03 = 13,966.55/x
  3. Step 3: Cross multiply
    20,342.02x = 28,085.03 × 13,966.55
  4. Step 4: Simplify right side
    20,342.02x = 392,250,975.75
  5. Step 5: Solve for x
    x = 392,250,975.75/20,342.02
  6. Step 6: Final answer
    x = 19,282.79

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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.