Home / 31,778.70-43,754.91-26,988.66

Finding the Fourth Proportional to 31,778.70, 43,754.91 and 26,988.66

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Solution

The fourth proportional to 31,778.70, 43,754.91 and 26,988.66 is: 37,159.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.70 : 43,754.91 = 26,988.66 : x
  2. Step 2: Convert to fraction form
    31,778.70/43,754.91 = 26,988.66/x
  3. Step 3: Cross multiply
    31,778.70x = 43,754.91 × 26,988.66
  4. Step 4: Simplify right side
    31,778.70x = 1,180,886,389.32
  5. Step 5: Solve for x
    x = 1,180,886,389.32/31,778.70
  6. Step 6: Final answer
    x = 37,159.68

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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.