Home / 21,121.74-29,088.81-17,552.70

Finding the Fourth Proportional to 21,121.74, 29,088.81 and 17,552.70

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Solution

The fourth proportional to 21,121.74, 29,088.81 and 17,552.70 is: 24,173.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,121.74 : 29,088.81 = 17,552.70 : x
  2. Step 2: Convert to fraction form
    21,121.74/29,088.81 = 17,552.70/x
  3. Step 3: Cross multiply
    21,121.74x = 29,088.81 × 17,552.70
  4. Step 4: Simplify right side
    21,121.74x = 510,587,155.29
  5. Step 5: Solve for x
    x = 510,587,155.29/21,121.74
  6. Step 6: Final answer
    x = 24,173.54

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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.