Home / 31,316.43-43,219.65-17,889.69

Finding the Fourth Proportional to 31,316.43, 43,219.65 and 17,889.69

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Solution

The fourth proportional to 31,316.43, 43,219.65 and 17,889.69 is: 24,689.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,316.43 : 43,219.65 = 17,889.69 : x
  2. Step 2: Convert to fraction form
    31,316.43/43,219.65 = 17,889.69/x
  3. Step 3: Cross multiply
    31,316.43x = 43,219.65 × 17,889.69
  4. Step 4: Simplify right side
    31,316.43x = 773,186,140.41
  5. Step 5: Solve for x
    x = 773,186,140.41/31,316.43
  6. Step 6: Final answer
    x = 24,689.47

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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.