Home / 20,128.39-30,192.86-6,088.52

Finding the Fourth Proportional to 20,128.39, 30,192.86 and 6,088.52

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Solution

The fourth proportional to 20,128.39, 30,192.86 and 6,088.52 is: 9,132.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,128.39 : 30,192.86 = 6,088.52 : x
  2. Step 2: Convert to fraction form
    20,128.39/30,192.86 = 6,088.52/x
  3. Step 3: Cross multiply
    20,128.39x = 30,192.86 × 6,088.52
  4. Step 4: Simplify right side
    20,128.39x = 183,829,922.67
  5. Step 5: Solve for x
    x = 183,829,922.67/20,128.39
  6. Step 6: Final answer
    x = 9,132.87

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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.