Home / 20,268.18-30,406.95-6,417.18

Finding the Fourth Proportional to 20,268.18, 30,406.95 and 6,417.18

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Solution

The fourth proportional to 20,268.18, 30,406.95 and 6,417.18 is: 9,627.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,268.18 : 30,406.95 = 6,417.18 : x
  2. Step 2: Convert to fraction form
    20,268.18/30,406.95 = 6,417.18/x
  3. Step 3: Cross multiply
    20,268.18x = 30,406.95 × 6,417.18
  4. Step 4: Simplify right side
    20,268.18x = 195,126,871.40
  5. Step 5: Solve for x
    x = 195,126,871.40/20,268.18
  6. Step 6: Final answer
    x = 9,627.25

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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.