Home / 40,971.52-61,457.46-12,890.44

Finding the Fourth Proportional to 40,971.52, 61,457.46 and 12,890.44

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Solution

The fourth proportional to 40,971.52, 61,457.46 and 12,890.44 is: 19,335.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,971.52 : 61,457.46 = 12,890.44 : x
  2. Step 2: Convert to fraction form
    40,971.52/61,457.46 = 12,890.44/x
  3. Step 3: Cross multiply
    40,971.52x = 61,457.46 × 12,890.44
  4. Step 4: Simplify right side
    40,971.52x = 792,213,700.68
  5. Step 5: Solve for x
    x = 792,213,700.68/40,971.52
  6. Step 6: Final answer
    x = 19,335.72

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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.