Home / 26,143.18-39,210.63-21,729.19

Finding the Fourth Proportional to 26,143.18, 39,210.63 and 21,729.19

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Solution

The fourth proportional to 26,143.18, 39,210.63 and 21,729.19 is: 32,590.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,143.18 : 39,210.63 = 21,729.19 : x
  2. Step 2: Convert to fraction form
    26,143.18/39,210.63 = 21,729.19/x
  3. Step 3: Cross multiply
    26,143.18x = 39,210.63 × 21,729.19
  4. Step 4: Simplify right side
    26,143.18x = 852,015,229.29
  5. Step 5: Solve for x
    x = 852,015,229.29/26,143.18
  6. Step 6: Final answer
    x = 32,590.34

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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.