Home / 35,819.46-53,655.35-20,983.40

Finding the Fourth Proportional to 35,819.46, 53,655.35 and 20,983.40

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Solution

The fourth proportional to 35,819.46, 53,655.35 and 20,983.40 is: 31,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,819.46 : 53,655.35 = 20,983.40 : x
  2. Step 2: Convert to fraction form
    35,819.46/53,655.35 = 20,983.40/x
  3. Step 3: Cross multiply
    35,819.46x = 53,655.35 × 20,983.40
  4. Step 4: Simplify right side
    35,819.46x = 1,125,871,857.79
  5. Step 5: Solve for x
    x = 1,125,871,857.79/35,819.46
  6. Step 6: Final answer
    x = 31,431.85

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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.