Home / 26,828.60-40,209.30-13,686.20

Finding the Fourth Proportional to 26,828.60, 40,209.30 and 13,686.20

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Solution

The fourth proportional to 26,828.60, 40,209.30 and 13,686.20 is: 20,512.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,828.60 : 40,209.30 = 13,686.20 : x
  2. Step 2: Convert to fraction form
    26,828.60/40,209.30 = 13,686.20/x
  3. Step 3: Cross multiply
    26,828.60x = 40,209.30 × 13,686.20
  4. Step 4: Simplify right side
    26,828.60x = 550,312,521.66
  5. Step 5: Solve for x
    x = 550,312,521.66/26,828.60
  6. Step 6: Final answer
    x = 20,512.16

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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.