Home / 20,330.65-28,059.63-13,951.99

Finding the Fourth Proportional to 20,330.65, 28,059.63 and 13,951.99

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Solution

The fourth proportional to 20,330.65, 28,059.63 and 13,951.99 is: 19,256.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330.65 : 28,059.63 = 13,951.99 : x
  2. Step 2: Convert to fraction form
    20,330.65/28,059.63 = 13,951.99/x
  3. Step 3: Cross multiply
    20,330.65x = 28,059.63 × 13,951.99
  4. Step 4: Simplify right side
    20,330.65x = 391,487,677.16
  5. Step 5: Solve for x
    x = 391,487,677.16/20,330.65
  6. Step 6: Final answer
    x = 19,256.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.