Home / 26,488.51-39,731.86-12,440.68

Finding the Fourth Proportional to 26,488.51, 39,731.86 and 12,440.68

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Solution

The fourth proportional to 26,488.51, 39,731.86 and 12,440.68 is: 18,660.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,488.51 : 39,731.86 = 12,440.68 : x
  2. Step 2: Convert to fraction form
    26,488.51/39,731.86 = 12,440.68/x
  3. Step 3: Cross multiply
    26,488.51x = 39,731.86 × 12,440.68
  4. Step 4: Simplify right side
    26,488.51x = 494,291,095.20
  5. Step 5: Solve for x
    x = 494,291,095.20/26,488.51
  6. Step 6: Final answer
    x = 18,660.59

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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.