Home / 20,290.57-30,439.29-6,250.30

Finding the Fourth Proportional to 20,290.57, 30,439.29 and 6,250.30

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Solution

The fourth proportional to 20,290.57, 30,439.29 and 6,250.30 is: 9,376.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,290.57 : 30,439.29 = 6,250.30 : x
  2. Step 2: Convert to fraction form
    20,290.57/30,439.29 = 6,250.30/x
  3. Step 3: Cross multiply
    20,290.57x = 30,439.29 × 6,250.30
  4. Step 4: Simplify right side
    20,290.57x = 190,254,641.63
  5. Step 5: Solve for x
    x = 190,254,641.63/20,290.57
  6. Step 6: Final answer
    x = 9,376.51

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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.