Home / 20,868.13-31,305.27-6,075.10

Finding the Fourth Proportional to 20,868.13, 31,305.27 and 6,075.10

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Solution

The fourth proportional to 20,868.13, 31,305.27 and 6,075.10 is: 9,113.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,868.13 : 31,305.27 = 6,075.10 : x
  2. Step 2: Convert to fraction form
    20,868.13/31,305.27 = 6,075.10/x
  3. Step 3: Cross multiply
    20,868.13x = 31,305.27 × 6,075.10
  4. Step 4: Simplify right side
    20,868.13x = 190,182,645.78
  5. Step 5: Solve for x
    x = 190,182,645.78/20,868.13
  6. Step 6: Final answer
    x = 9,113.55

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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.