Home / 21,132.83-31,699.55-10,040.66

Finding the Fourth Proportional to 21,132.83, 31,699.55 and 10,040.66

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Solution

The fourth proportional to 21,132.83, 31,699.55 and 10,040.66 is: 15,061.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,132.83 : 31,699.55 = 10,040.66 : x
  2. Step 2: Convert to fraction form
    21,132.83/31,699.55 = 10,040.66/x
  3. Step 3: Cross multiply
    21,132.83x = 31,699.55 × 10,040.66
  4. Step 4: Simplify right side
    21,132.83x = 318,284,389.18
  5. Step 5: Solve for x
    x = 318,284,389.18/21,132.83
  6. Step 6: Final answer
    x = 15,061.13

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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.