Home / 14,291.28-21,437.28-3,903.12

Finding the Fourth Proportional to 14,291.28, 21,437.28 and 3,903.12

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Solution

The fourth proportional to 14,291.28, 21,437.28 and 3,903.12 is: 5,854.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,291.28 : 21,437.28 = 3,903.12 : x
  2. Step 2: Convert to fraction form
    14,291.28/21,437.28 = 3,903.12/x
  3. Step 3: Cross multiply
    14,291.28x = 21,437.28 × 3,903.12
  4. Step 4: Simplify right side
    14,291.28x = 83,672,276.31
  5. Step 5: Solve for x
    x = 83,672,276.31/14,291.28
  6. Step 6: Final answer
    x = 5,854.78

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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.