Home / 20,901.06-31,351.17-5,106.19

Finding the Fourth Proportional to 20,901.06, 31,351.17 and 5,106.19

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Solution

The fourth proportional to 20,901.06, 31,351.17 and 5,106.19 is: 7,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,901.06 : 31,351.17 = 5,106.19 : x
  2. Step 2: Convert to fraction form
    20,901.06/31,351.17 = 5,106.19/x
  3. Step 3: Cross multiply
    20,901.06x = 31,351.17 × 5,106.19
  4. Step 4: Simplify right side
    20,901.06x = 160,085,030.74
  5. Step 5: Solve for x
    x = 160,085,030.74/20,901.06
  6. Step 6: Final answer
    x = 7,659.18

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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.