Home / 31,418.61-43,355.85-17,271.45

Finding the Fourth Proportional to 31,418.61, 43,355.85 and 17,271.45

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Solution

The fourth proportional to 31,418.61, 43,355.85 and 17,271.45 is: 23,833.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.61 : 43,355.85 = 17,271.45 : x
  2. Step 2: Convert to fraction form
    31,418.61/43,355.85 = 17,271.45/x
  3. Step 3: Cross multiply
    31,418.61x = 43,355.85 × 17,271.45
  4. Step 4: Simplify right side
    31,418.61x = 748,818,395.48
  5. Step 5: Solve for x
    x = 748,818,395.48/31,418.61
  6. Step 6: Final answer
    x = 23,833.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.