Home / 14,290.64-21,432.72-3,903.20

Finding the Fourth Proportional to 14,290.64, 21,432.72 and 3,903.20

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Solution

The fourth proportional to 14,290.64, 21,432.72 and 3,903.20 is: 5,853.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,290.64 : 21,432.72 = 3,903.20 : x
  2. Step 2: Convert to fraction form
    14,290.64/21,432.72 = 3,903.20/x
  3. Step 3: Cross multiply
    14,290.64x = 21,432.72 × 3,903.20
  4. Step 4: Simplify right side
    14,290.64x = 83,656,192.70
  5. Step 5: Solve for x
    x = 83,656,192.70/14,290.64
  6. Step 6: Final answer
    x = 5,853.92

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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.