Home / 14,585.60-21,835.20-13,731.20

Finding the Fourth Proportional to 14,585.60, 21,835.20 and 13,731.20

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Solution

The fourth proportional to 14,585.60, 21,835.20 and 13,731.20 is: 20,556.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,585.60 : 21,835.20 = 13,731.20 : x
  2. Step 2: Convert to fraction form
    14,585.60/21,835.20 = 13,731.20/x
  3. Step 3: Cross multiply
    14,585.60x = 21,835.20 × 13,731.20
  4. Step 4: Simplify right side
    14,585.60x = 299,823,498.24
  5. Step 5: Solve for x
    x = 299,823,498.24/14,585.60
  6. Step 6: Final answer
    x = 20,556.13

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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.