Home / 20,887.40-31,332.30-6,098.60

Finding the Fourth Proportional to 20,887.40, 31,332.30 and 6,098.60

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Solution

The fourth proportional to 20,887.40, 31,332.30 and 6,098.60 is: 9,148.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,887.40 : 31,332.30 = 6,098.60 : x
  2. Step 2: Convert to fraction form
    20,887.40/31,332.30 = 6,098.60/x
  3. Step 3: Cross multiply
    20,887.40x = 31,332.30 × 6,098.60
  4. Step 4: Simplify right side
    20,887.40x = 191,083,164.78
  5. Step 5: Solve for x
    x = 191,083,164.78/20,887.40
  6. Step 6: Final answer
    x = 9,148.25

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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.