Home / 28,242.28-38,980.02-16,307.56

Finding the Fourth Proportional to 28,242.28, 38,980.02 and 16,307.56

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Solution

The fourth proportional to 28,242.28, 38,980.02 and 16,307.56 is: 22,507.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.28 : 38,980.02 = 16,307.56 : x
  2. Step 2: Convert to fraction form
    28,242.28/38,980.02 = 16,307.56/x
  3. Step 3: Cross multiply
    28,242.28x = 38,980.02 × 16,307.56
  4. Step 4: Simplify right side
    28,242.28x = 635,669,014.95
  5. Step 5: Solve for x
    x = 635,669,014.95/28,242.28
  6. Step 6: Final answer
    x = 22,507.71

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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.