Home / 31,417-43,355.55-17,988.46

Finding the Fourth Proportional to 31,417, 43,355.55 and 17,988.46

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Solution

The fourth proportional to 31,417, 43,355.55 and 17,988.46 is: 24,824.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,417 : 43,355.55 = 17,988.46 : x
  2. Step 2: Convert to fraction form
    31,417/43,355.55 = 17,988.46/x
  3. Step 3: Cross multiply
    31,417x = 43,355.55 × 17,988.46
  4. Step 4: Simplify right side
    31,417x = 779,899,576.95
  5. Step 5: Solve for x
    x = 779,899,576.95/31,417
  6. Step 6: Final answer
    x = 24,824.13

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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.