Home / 21,490.51-32,242.77-18,016.84

Finding the Fourth Proportional to 21,490.51, 32,242.77 and 18,016.84

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Solution

The fourth proportional to 21,490.51, 32,242.77 and 18,016.84 is: 27,031.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490.51 : 32,242.77 = 18,016.84 : x
  2. Step 2: Convert to fraction form
    21,490.51/32,242.77 = 18,016.84/x
  3. Step 3: Cross multiply
    21,490.51x = 32,242.77 × 18,016.84
  4. Step 4: Simplify right side
    21,490.51x = 580,912,828.25
  5. Step 5: Solve for x
    x = 580,912,828.25/21,490.51
  6. Step 6: Final answer
    x = 27,031.13

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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.