Home / 21,041.24-29,047.42-13,086.02

Finding the Fourth Proportional to 21,041.24, 29,047.42 and 13,086.02

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Solution

The fourth proportional to 21,041.24, 29,047.42 and 13,086.02 is: 18,065.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,041.24 : 29,047.42 = 13,086.02 : x
  2. Step 2: Convert to fraction form
    21,041.24/29,047.42 = 13,086.02/x
  3. Step 3: Cross multiply
    21,041.24x = 29,047.42 × 13,086.02
  4. Step 4: Simplify right side
    21,041.24x = 380,115,208.04
  5. Step 5: Solve for x
    x = 380,115,208.04/21,041.24
  6. Step 6: Final answer
    x = 18,065.25

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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.