Home / 49,617.57-74,428.79-20,031.72

Finding the Fourth Proportional to 49,617.57, 74,428.79 and 20,031.72

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Solution

The fourth proportional to 49,617.57, 74,428.79 and 20,031.72 is: 30,048.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,617.57 : 74,428.79 = 20,031.72 : x
  2. Step 2: Convert to fraction form
    49,617.57/74,428.79 = 20,031.72/x
  3. Step 3: Cross multiply
    49,617.57x = 74,428.79 × 20,031.72
  4. Step 4: Simplify right side
    49,617.57x = 1,490,936,681.22
  5. Step 5: Solve for x
    x = 1,490,936,681.22/49,617.57
  6. Step 6: Final answer
    x = 30,048.56

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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.