Home / 43,510.40-65,273.78-13,920.30

Finding the Fourth Proportional to 43,510.40, 65,273.78 and 13,920.30

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Solution

The fourth proportional to 43,510.40, 65,273.78 and 13,920.30 is: 20,883.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,510.40 : 65,273.78 = 13,920.30 : x
  2. Step 2: Convert to fraction form
    43,510.40/65,273.78 = 13,920.30/x
  3. Step 3: Cross multiply
    43,510.40x = 65,273.78 × 13,920.30
  4. Step 4: Simplify right side
    43,510.40x = 908,630,599.73
  5. Step 5: Solve for x
    x = 908,630,599.73/43,510.40
  6. Step 6: Final answer
    x = 20,883.07

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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.