Home / 21,152.04-29,189.38-11,720.52

Finding the Fourth Proportional to 21,152.04, 29,189.38 and 11,720.52

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Solution

The fourth proportional to 21,152.04, 29,189.38 and 11,720.52 is: 16,174.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,152.04 : 29,189.38 = 11,720.52 : x
  2. Step 2: Convert to fraction form
    21,152.04/29,189.38 = 11,720.52/x
  3. Step 3: Cross multiply
    21,152.04x = 29,189.38 × 11,720.52
  4. Step 4: Simplify right side
    21,152.04x = 342,114,712.08
  5. Step 5: Solve for x
    x = 342,114,712.08/21,152.04
  6. Step 6: Final answer
    x = 16,174.08

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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.