Home / 26,838.60-40,209.30-21,881.40

Finding the Fourth Proportional to 26,838.60, 40,209.30 and 21,881.40

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Solution

The fourth proportional to 26,838.60, 40,209.30 and 21,881.40 is: 32,782.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,838.60 : 40,209.30 = 21,881.40 : x
  2. Step 2: Convert to fraction form
    26,838.60/40,209.30 = 21,881.40/x
  3. Step 3: Cross multiply
    26,838.60x = 40,209.30 × 21,881.40
  4. Step 4: Simplify right side
    26,838.60x = 879,835,777.02
  5. Step 5: Solve for x
    x = 879,835,777.02/26,838.60
  6. Step 6: Final answer
    x = 32,782.48

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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.