Home / 14,133.66-21,167.68-13,641.60

Finding the Fourth Proportional to 14,133.66, 21,167.68 and 13,641.60

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Solution

The fourth proportional to 14,133.66, 21,167.68 and 13,641.60 is: 20,430.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,133.66 : 21,167.68 = 13,641.60 : x
  2. Step 2: Convert to fraction form
    14,133.66/21,167.68 = 13,641.60/x
  3. Step 3: Cross multiply
    14,133.66x = 21,167.68 × 13,641.60
  4. Step 4: Simplify right side
    14,133.66x = 288,761,023.49
  5. Step 5: Solve for x
    x = 288,761,023.49/14,133.66
  6. Step 6: Final answer
    x = 20,430.73

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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.