Home / 22,389.65-30,876.74-13,893.15

Finding the Fourth Proportional to 22,389.65, 30,876.74 and 13,893.15

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Solution

The fourth proportional to 22,389.65, 30,876.74 and 13,893.15 is: 19,159.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,389.65 : 30,876.74 = 13,893.15 : x
  2. Step 2: Convert to fraction form
    22,389.65/30,876.74 = 13,893.15/x
  3. Step 3: Cross multiply
    22,389.65x = 30,876.74 × 13,893.15
  4. Step 4: Simplify right side
    22,389.65x = 428,975,356.90
  5. Step 5: Solve for x
    x = 428,975,356.90/22,389.65
  6. Step 6: Final answer
    x = 19,159.54

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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.