Home / 26,810.83-40,223.07-18,928.70

Finding the Fourth Proportional to 26,810.83, 40,223.07 and 18,928.70

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Solution

The fourth proportional to 26,810.83, 40,223.07 and 18,928.70 is: 28,397.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,810.83 : 40,223.07 = 18,928.70 : x
  2. Step 2: Convert to fraction form
    26,810.83/40,223.07 = 18,928.70/x
  3. Step 3: Cross multiply
    26,810.83x = 40,223.07 × 18,928.70
  4. Step 4: Simplify right side
    26,810.83x = 761,370,430.98
  5. Step 5: Solve for x
    x = 761,370,430.98/26,810.83
  6. Step 6: Final answer
    x = 28,397.87

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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.