Home / 47,315.64-70,983.96-20,665.92

Finding the Fourth Proportional to 47,315.64, 70,983.96 and 20,665.92

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Solution

The fourth proportional to 47,315.64, 70,983.96 and 20,665.92 is: 31,003.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,315.64 : 70,983.96 = 20,665.92 : x
  2. Step 2: Convert to fraction form
    47,315.64/70,983.96 = 20,665.92/x
  3. Step 3: Cross multiply
    47,315.64x = 70,983.96 × 20,665.92
  4. Step 4: Simplify right side
    47,315.64x = 1,466,948,838.64
  5. Step 5: Solve for x
    x = 1,466,948,838.64/47,315.64
  6. Step 6: Final answer
    x = 31,003.47

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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.