Home / 26,980.20-40,470.30-21,075.30

Finding the Fourth Proportional to 26,980.20, 40,470.30 and 21,075.30

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Solution

The fourth proportional to 26,980.20, 40,470.30 and 21,075.30 is: 31,612.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,980.20 : 40,470.30 = 21,075.30 : x
  2. Step 2: Convert to fraction form
    26,980.20/40,470.30 = 21,075.30/x
  3. Step 3: Cross multiply
    26,980.20x = 40,470.30 × 21,075.30
  4. Step 4: Simplify right side
    26,980.20x = 852,923,713.59
  5. Step 5: Solve for x
    x = 852,923,713.59/26,980.20
  6. Step 6: Final answer
    x = 31,612.95

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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.