Home / 43,012.08-64,494-13,422.24

Finding the Fourth Proportional to 43,012.08, 64,494 and 13,422.24

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Solution

The fourth proportional to 43,012.08, 64,494 and 13,422.24 is: 20,125.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,012.08 : 64,494 = 13,422.24 : x
  2. Step 2: Convert to fraction form
    43,012.08/64,494 = 13,422.24/x
  3. Step 3: Cross multiply
    43,012.08x = 64,494 × 13,422.24
  4. Step 4: Simplify right side
    43,012.08x = 865,653,946.56
  5. Step 5: Solve for x
    x = 865,653,946.56/43,012.08
  6. Step 6: Final answer
    x = 20,125.83

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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.