Home / 43,385.68-65,079.06-13,803.40

Finding the Fourth Proportional to 43,385.68, 65,079.06 and 13,803.40

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Solution

The fourth proportional to 43,385.68, 65,079.06 and 13,803.40 is: 20,705.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,385.68 : 65,079.06 = 13,803.40 : x
  2. Step 2: Convert to fraction form
    43,385.68/65,079.06 = 13,803.40/x
  3. Step 3: Cross multiply
    43,385.68x = 65,079.06 × 13,803.40
  4. Step 4: Simplify right side
    43,385.68x = 898,312,296.80
  5. Step 5: Solve for x
    x = 898,312,296.80/43,385.68
  6. Step 6: Final answer
    x = 20,705.27

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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.