Home / 20,675.13-31,000.95-14,109.27

Finding the Fourth Proportional to 20,675.13, 31,000.95 and 14,109.27

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Solution

The fourth proportional to 20,675.13, 31,000.95 and 14,109.27 is: 21,155.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,675.13 : 31,000.95 = 14,109.27 : x
  2. Step 2: Convert to fraction form
    20,675.13/31,000.95 = 14,109.27/x
  3. Step 3: Cross multiply
    20,675.13x = 31,000.95 × 14,109.27
  4. Step 4: Simplify right side
    20,675.13x = 437,400,773.81
  5. Step 5: Solve for x
    x = 437,400,773.81/20,675.13
  6. Step 6: Final answer
    x = 21,155.89

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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.