Home / 21,810.13-32,708.31-7,015.75

Finding the Fourth Proportional to 21,810.13, 32,708.31 and 7,015.75

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Solution

The fourth proportional to 21,810.13, 32,708.31 and 7,015.75 is: 10,521.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,810.13 : 32,708.31 = 7,015.75 : x
  2. Step 2: Convert to fraction form
    21,810.13/32,708.31 = 7,015.75/x
  3. Step 3: Cross multiply
    21,810.13x = 32,708.31 × 7,015.75
  4. Step 4: Simplify right side
    21,810.13x = 229,473,325.88
  5. Step 5: Solve for x
    x = 229,473,325.88/21,810.13
  6. Step 6: Final answer
    x = 10,521.41

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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.