Home / 31,389.47-43,316.74-17,049.13

Finding the Fourth Proportional to 31,389.47, 43,316.74 and 17,049.13

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Solution

The fourth proportional to 31,389.47, 43,316.74 and 17,049.13 is: 23,527.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.47 : 43,316.74 = 17,049.13 : x
  2. Step 2: Convert to fraction form
    31,389.47/43,316.74 = 17,049.13/x
  3. Step 3: Cross multiply
    31,389.47x = 43,316.74 × 17,049.13
  4. Step 4: Simplify right side
    31,389.47x = 738,512,649.96
  5. Step 5: Solve for x
    x = 738,512,649.96/31,389.47
  6. Step 6: Final answer
    x = 23,527.40

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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.