Home / 27,438.60-37,871.16-15,502.44

Finding the Fourth Proportional to 27,438.60, 37,871.16 and 15,502.44

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Solution

The fourth proportional to 27,438.60, 37,871.16 and 15,502.44 is: 21,396.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,438.60 : 37,871.16 = 15,502.44 : x
  2. Step 2: Convert to fraction form
    27,438.60/37,871.16 = 15,502.44/x
  3. Step 3: Cross multiply
    27,438.60x = 37,871.16 × 15,502.44
  4. Step 4: Simplify right side
    27,438.60x = 587,095,385.63
  5. Step 5: Solve for x
    x = 587,095,385.63/27,438.60
  6. Step 6: Final answer
    x = 21,396.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.