Home / 21,920.08-32,888.38-13,161.10

Finding the Fourth Proportional to 21,920.08, 32,888.38 and 13,161.10

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Solution

The fourth proportional to 21,920.08, 32,888.38 and 13,161.10 is: 19,746.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,920.08 : 32,888.38 = 13,161.10 : x
  2. Step 2: Convert to fraction form
    21,920.08/32,888.38 = 13,161.10/x
  3. Step 3: Cross multiply
    21,920.08x = 32,888.38 × 13,161.10
  4. Step 4: Simplify right side
    21,920.08x = 432,847,258.02
  5. Step 5: Solve for x
    x = 432,847,258.02/21,920.08
  6. Step 6: Final answer
    x = 19,746.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.