Home / 28,551.75-42,803.01-13,740.30

Finding the Fourth Proportional to 28,551.75, 42,803.01 and 13,740.30

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Solution

The fourth proportional to 28,551.75, 42,803.01 and 13,740.30 is: 20,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551.75 : 42,803.01 = 13,740.30 : x
  2. Step 2: Convert to fraction form
    28,551.75/42,803.01 = 13,740.30/x
  3. Step 3: Cross multiply
    28,551.75x = 42,803.01 × 13,740.30
  4. Step 4: Simplify right side
    28,551.75x = 588,126,198.30
  5. Step 5: Solve for x
    x = 588,126,198.30/28,551.75
  6. Step 6: Final answer
    x = 20,598.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.