Home / 31,449.64-47,153.58-12,461.68

Finding the Fourth Proportional to 31,449.64, 47,153.58 and 12,461.68

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Solution

The fourth proportional to 31,449.64, 47,153.58 and 12,461.68 is: 18,684.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,449.64 : 47,153.58 = 12,461.68 : x
  2. Step 2: Convert to fraction form
    31,449.64/47,153.58 = 12,461.68/x
  3. Step 3: Cross multiply
    31,449.64x = 47,153.58 × 12,461.68
  4. Step 4: Simplify right side
    31,449.64x = 587,612,824.81
  5. Step 5: Solve for x
    x = 587,612,824.81/31,449.64
  6. Step 6: Final answer
    x = 18,684.25

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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.