Home / 45,010.56-67,515.81-15,428.64

Finding the Fourth Proportional to 45,010.56, 67,515.81 and 15,428.64

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Solution

The fourth proportional to 45,010.56, 67,515.81 and 15,428.64 is: 23,142.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,010.56 : 67,515.81 = 15,428.64 : x
  2. Step 2: Convert to fraction form
    45,010.56/67,515.81 = 15,428.64/x
  3. Step 3: Cross multiply
    45,010.56x = 67,515.81 × 15,428.64
  4. Step 4: Simplify right side
    45,010.56x = 1,041,677,126.80
  5. Step 5: Solve for x
    x = 1,041,677,126.80/45,010.56
  6. Step 6: Final answer
    x = 23,142.95

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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.