Home / 31,502.16-47,257.56-13,971.60

Finding the Fourth Proportional to 31,502.16, 47,257.56 and 13,971.60

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Solution

The fourth proportional to 31,502.16, 47,257.56 and 13,971.60 is: 20,959.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,502.16 : 47,257.56 = 13,971.60 : x
  2. Step 2: Convert to fraction form
    31,502.16/47,257.56 = 13,971.60/x
  3. Step 3: Cross multiply
    31,502.16x = 47,257.56 × 13,971.60
  4. Step 4: Simplify right side
    31,502.16x = 660,263,725.30
  5. Step 5: Solve for x
    x = 660,263,725.30/31,502.16
  6. Step 6: Final answer
    x = 20,959.32

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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.