Home / 20,671.65-28,526.73-11,240.22

Finding the Fourth Proportional to 20,671.65, 28,526.73 and 11,240.22

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Solution

The fourth proportional to 20,671.65, 28,526.73 and 11,240.22 is: 15,511.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671.65 : 28,526.73 = 11,240.22 : x
  2. Step 2: Convert to fraction form
    20,671.65/28,526.73 = 11,240.22/x
  3. Step 3: Cross multiply
    20,671.65x = 28,526.73 × 11,240.22
  4. Step 4: Simplify right side
    20,671.65x = 320,646,721.08
  5. Step 5: Solve for x
    x = 320,646,721.08/20,671.65
  6. Step 6: Final answer
    x = 15,511.42

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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.