Home / 21,616.79-32,210.30-19,258.68

Finding the Fourth Proportional to 21,616.79, 32,210.30 and 19,258.68

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Solution

The fourth proportional to 21,616.79, 32,210.30 and 19,258.68 is: 28,696.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,616.79 : 32,210.30 = 19,258.68 : x
  2. Step 2: Convert to fraction form
    21,616.79/32,210.30 = 19,258.68/x
  3. Step 3: Cross multiply
    21,616.79x = 32,210.30 × 19,258.68
  4. Step 4: Simplify right side
    21,616.79x = 620,327,715.54
  5. Step 5: Solve for x
    x = 620,327,715.54/21,616.79
  6. Step 6: Final answer
    x = 28,696.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.