Home / 20,307.60-30,437.10-10,441.80

Finding the Fourth Proportional to 20,307.60, 30,437.10 and 10,441.80

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Solution

The fourth proportional to 20,307.60, 30,437.10 and 10,441.80 is: 15,650.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,307.60 : 30,437.10 = 10,441.80 : x
  2. Step 2: Convert to fraction form
    20,307.60/30,437.10 = 10,441.80/x
  3. Step 3: Cross multiply
    20,307.60x = 30,437.10 × 10,441.80
  4. Step 4: Simplify right side
    20,307.60x = 317,818,110.78
  5. Step 5: Solve for x
    x = 317,818,110.78/20,307.60
  6. Step 6: Final answer
    x = 15,650.21

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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.