Home / 43,561.08-65,348.10-15,478.80

Finding the Fourth Proportional to 43,561.08, 65,348.10 and 15,478.80

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Solution

The fourth proportional to 43,561.08, 65,348.10 and 15,478.80 is: 23,220.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,561.08 : 65,348.10 = 15,478.80 : x
  2. Step 2: Convert to fraction form
    43,561.08/65,348.10 = 15,478.80/x
  3. Step 3: Cross multiply
    43,561.08x = 65,348.10 × 15,478.80
  4. Step 4: Simplify right side
    43,561.08x = 1,011,510,170.28
  5. Step 5: Solve for x
    x = 1,011,510,170.28/43,561.08
  6. Step 6: Final answer
    x = 23,220.50

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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.