Home / 22,569.89-31,136.62-13,612.42

Finding the Fourth Proportional to 22,569.89, 31,136.62 and 13,612.42

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Solution

The fourth proportional to 22,569.89, 31,136.62 and 13,612.42 is: 18,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,569.89 : 31,136.62 = 13,612.42 : x
  2. Step 2: Convert to fraction form
    22,569.89/31,136.62 = 13,612.42/x
  3. Step 3: Cross multiply
    22,569.89x = 31,136.62 × 13,612.42
  4. Step 4: Simplify right side
    22,569.89x = 423,844,525.08
  5. Step 5: Solve for x
    x = 423,844,525.08/22,569.89
  6. Step 6: Final answer
    x = 18,779.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.