Home / 21,547.44-29,728.32-17,561.70

Finding the Fourth Proportional to 21,547.44, 29,728.32 and 17,561.70

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Solution

The fourth proportional to 21,547.44, 29,728.32 and 17,561.70 is: 24,229.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,547.44 : 29,728.32 = 17,561.70 : x
  2. Step 2: Convert to fraction form
    21,547.44/29,728.32 = 17,561.70/x
  3. Step 3: Cross multiply
    21,547.44x = 29,728.32 × 17,561.70
  4. Step 4: Simplify right side
    21,547.44x = 522,079,837.34
  5. Step 5: Solve for x
    x = 522,079,837.34/21,547.44
  6. Step 6: Final answer
    x = 24,229.32

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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.