Home / 20,802.13-31,203.19-6,951.13

Finding the Fourth Proportional to 20,802.13, 31,203.19 and 6,951.13

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Solution

The fourth proportional to 20,802.13, 31,203.19 and 6,951.13 is: 10,426.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802.13 : 31,203.19 = 6,951.13 : x
  2. Step 2: Convert to fraction form
    20,802.13/31,203.19 = 6,951.13/x
  3. Step 3: Cross multiply
    20,802.13x = 31,203.19 × 6,951.13
  4. Step 4: Simplify right side
    20,802.13x = 216,897,430.10
  5. Step 5: Solve for x
    x = 216,897,430.10/20,802.13
  6. Step 6: Final answer
    x = 10,426.69

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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.