Home / 35,748.47-49,335.12-20,643.90

Finding the Fourth Proportional to 35,748.47, 49,335.12 and 20,643.90

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Solution

The fourth proportional to 35,748.47, 49,335.12 and 20,643.90 is: 28,489.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,748.47 : 49,335.12 = 20,643.90 : x
  2. Step 2: Convert to fraction form
    35,748.47/49,335.12 = 20,643.90/x
  3. Step 3: Cross multiply
    35,748.47x = 49,335.12 × 20,643.90
  4. Step 4: Simplify right side
    35,748.47x = 1,018,469,283.77
  5. Step 5: Solve for x
    x = 1,018,469,283.77/35,748.47
  6. Step 6: Final answer
    x = 28,489.87

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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.