Home / 31,316.28-43,211.78-17,884.68

Finding the Fourth Proportional to 31,316.28, 43,211.78 and 17,884.68

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Solution

The fourth proportional to 31,316.28, 43,211.78 and 17,884.68 is: 24,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,316.28 : 43,211.78 = 17,884.68 : x
  2. Step 2: Convert to fraction form
    31,316.28/43,211.78 = 17,884.68/x
  3. Step 3: Cross multiply
    31,316.28x = 43,211.78 × 17,884.68
  4. Step 4: Simplify right side
    31,316.28x = 772,828,768.11
  5. Step 5: Solve for x
    x = 772,828,768.11/31,316.28
  6. Step 6: Final answer
    x = 24,678.18

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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.