Home / 31,416.13-43,355.16-17,988.76

Finding the Fourth Proportional to 31,416.13, 43,355.16 and 17,988.76

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Solution

The fourth proportional to 31,416.13, 43,355.16 and 17,988.76 is: 24,825.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,416.13 : 43,355.16 = 17,988.76 : x
  2. Step 2: Convert to fraction form
    31,416.13/43,355.16 = 17,988.76/x
  3. Step 3: Cross multiply
    31,416.13x = 43,355.16 × 17,988.76
  4. Step 4: Simplify right side
    31,416.13x = 779,905,568.00
  5. Step 5: Solve for x
    x = 779,905,568.00/31,416.13
  6. Step 6: Final answer
    x = 24,825.00

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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.