Home / 20,177.51-30,266.19-4,980.15

Finding the Fourth Proportional to 20,177.51, 30,266.19 and 4,980.15

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Solution

The fourth proportional to 20,177.51, 30,266.19 and 4,980.15 is: 7,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.51 : 30,266.19 = 4,980.15 : x
  2. Step 2: Convert to fraction form
    20,177.51/30,266.19 = 4,980.15/x
  3. Step 3: Cross multiply
    20,177.51x = 30,266.19 × 4,980.15
  4. Step 4: Simplify right side
    20,177.51x = 150,730,166.13
  5. Step 5: Solve for x
    x = 150,730,166.13/20,177.51
  6. Step 6: Final answer
    x = 7,470.21

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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.