Home / 47,003.15-70,523.19-20,689.45

Finding the Fourth Proportional to 47,003.15, 70,523.19 and 20,689.45

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Solution

The fourth proportional to 47,003.15, 70,523.19 and 20,689.45 is: 31,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,003.15 : 70,523.19 = 20,689.45 : x
  2. Step 2: Convert to fraction form
    47,003.15/70,523.19 = 20,689.45/x
  3. Step 3: Cross multiply
    47,003.15x = 70,523.19 × 20,689.45
  4. Step 4: Simplify right side
    47,003.15x = 1,459,085,837.04
  5. Step 5: Solve for x
    x = 1,459,085,837.04/47,003.15
  6. Step 6: Final answer
    x = 31,042.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.