Home / 21,140.71-31,711.38-10,048.53

Finding the Fourth Proportional to 21,140.71, 31,711.38 and 10,048.53

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Solution

The fourth proportional to 21,140.71, 31,711.38 and 10,048.53 is: 15,072.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,140.71 : 31,711.38 = 10,048.53 : x
  2. Step 2: Convert to fraction form
    21,140.71/31,711.38 = 10,048.53/x
  3. Step 3: Cross multiply
    21,140.71x = 31,711.38 × 10,048.53
  4. Step 4: Simplify right side
    21,140.71x = 318,652,753.27
  5. Step 5: Solve for x
    x = 318,652,753.27/21,140.71
  6. Step 6: Final answer
    x = 15,072.94

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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.