Home / 20,683.13-31,012.95-14,117.27

Finding the Fourth Proportional to 20,683.13, 31,012.95 and 14,117.27

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Solution

The fourth proportional to 20,683.13, 31,012.95 and 14,117.27 is: 21,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.13 : 31,012.95 = 14,117.27 : x
  2. Step 2: Convert to fraction form
    20,683.13/31,012.95 = 14,117.27/x
  3. Step 3: Cross multiply
    20,683.13x = 31,012.95 × 14,117.27
  4. Step 4: Simplify right side
    20,683.13x = 437,818,188.65
  5. Step 5: Solve for x
    x = 437,818,188.65/20,683.13
  6. Step 6: Final answer
    x = 21,167.89

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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.