Home / 20,636.46-30,751.29-19,967.40

Finding the Fourth Proportional to 20,636.46, 30,751.29 and 19,967.40

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Solution

The fourth proportional to 20,636.46, 30,751.29 and 19,967.40 is: 29,754.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,636.46 : 30,751.29 = 19,967.40 : x
  2. Step 2: Convert to fraction form
    20,636.46/30,751.29 = 19,967.40/x
  3. Step 3: Cross multiply
    20,636.46x = 30,751.29 × 19,967.40
  4. Step 4: Simplify right side
    20,636.46x = 614,023,307.95
  5. Step 5: Solve for x
    x = 614,023,307.95/20,636.46
  6. Step 6: Final answer
    x = 29,754.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.