Home / 43,280.16-64,920.56-13,697.44

Finding the Fourth Proportional to 43,280.16, 64,920.56 and 13,697.44

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Solution

The fourth proportional to 43,280.16, 64,920.56 and 13,697.44 is: 20,546.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,280.16 : 64,920.56 = 13,697.44 : x
  2. Step 2: Convert to fraction form
    43,280.16/64,920.56 = 13,697.44/x
  3. Step 3: Cross multiply
    43,280.16x = 64,920.56 × 13,697.44
  4. Step 4: Simplify right side
    43,280.16x = 889,245,475.37
  5. Step 5: Solve for x
    x = 889,245,475.37/43,280.16
  6. Step 6: Final answer
    x = 20,546.26

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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.