Home / 22,062.78-30,445.41-11,991.15

Finding the Fourth Proportional to 22,062.78, 30,445.41 and 11,991.15

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Solution

The fourth proportional to 22,062.78, 30,445.41 and 11,991.15 is: 16,547.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,062.78 : 30,445.41 = 11,991.15 : x
  2. Step 2: Convert to fraction form
    22,062.78/30,445.41 = 11,991.15/x
  3. Step 3: Cross multiply
    22,062.78x = 30,445.41 × 11,991.15
  4. Step 4: Simplify right side
    22,062.78x = 365,075,478.12
  5. Step 5: Solve for x
    x = 365,075,478.12/22,062.78
  6. Step 6: Final answer
    x = 16,547.12

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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.