Home / 20,659.77-30,989.10-5,868.69

Finding the Fourth Proportional to 20,659.77, 30,989.10 and 5,868.69

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Solution

The fourth proportional to 20,659.77, 30,989.10 and 5,868.69 is: 8,802.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659.77 : 30,989.10 = 5,868.69 : x
  2. Step 2: Convert to fraction form
    20,659.77/30,989.10 = 5,868.69/x
  3. Step 3: Cross multiply
    20,659.77x = 30,989.10 × 5,868.69
  4. Step 4: Simplify right side
    20,659.77x = 181,865,421.28
  5. Step 5: Solve for x
    x = 181,865,421.28/20,659.77
  6. Step 6: Final answer
    x = 8,802.88

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1.5x scale

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.