Home / 31,255.91-43,125.90-18,502.67

Finding the Fourth Proportional to 31,255.91, 43,125.90 and 18,502.67

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Solution

The fourth proportional to 31,255.91, 43,125.90 and 18,502.67 is: 25,529.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,255.91 : 43,125.90 = 18,502.67 : x
  2. Step 2: Convert to fraction form
    31,255.91/43,125.90 = 18,502.67/x
  3. Step 3: Cross multiply
    31,255.91x = 43,125.90 × 18,502.67
  4. Step 4: Simplify right side
    31,255.91x = 797,944,080.52
  5. Step 5: Solve for x
    x = 797,944,080.52/31,255.91
  6. Step 6: Final answer
    x = 25,529.39

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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.