Home / 21,922.36-32,870.40-10,655.51

Finding the Fourth Proportional to 21,922.36, 32,870.40 and 10,655.51

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Solution

The fourth proportional to 21,922.36, 32,870.40 and 10,655.51 is: 15,976.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,922.36 : 32,870.40 = 10,655.51 : x
  2. Step 2: Convert to fraction form
    21,922.36/32,870.40 = 10,655.51/x
  3. Step 3: Cross multiply
    21,922.36x = 32,870.40 × 10,655.51
  4. Step 4: Simplify right side
    21,922.36x = 350,250,875.90
  5. Step 5: Solve for x
    x = 350,250,875.90/21,922.36
  6. Step 6: Final answer
    x = 15,976.88

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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.