Home / 43,485.10-65,227.65-12,320.62

Finding the Fourth Proportional to 43,485.10, 65,227.65 and 12,320.62

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Solution

The fourth proportional to 43,485.10, 65,227.65 and 12,320.62 is: 18,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,485.10 : 65,227.65 = 12,320.62 : x
  2. Step 2: Convert to fraction form
    43,485.10/65,227.65 = 12,320.62/x
  3. Step 3: Cross multiply
    43,485.10x = 65,227.65 × 12,320.62
  4. Step 4: Simplify right side
    43,485.10x = 803,645,089.14
  5. Step 5: Solve for x
    x = 803,645,089.14/43,485.10
  6. Step 6: Final answer
    x = 18,480.93

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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.