Home / 21,810.24-32,715.48-7,020

Finding the Fourth Proportional to 21,810.24, 32,715.48 and 7,020

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Solution

The fourth proportional to 21,810.24, 32,715.48 and 7,020 is: 10,530.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,810.24 : 32,715.48 = 7,020 : x
  2. Step 2: Convert to fraction form
    21,810.24/32,715.48 = 7,020/x
  3. Step 3: Cross multiply
    21,810.24x = 32,715.48 × 7,020
  4. Step 4: Simplify right side
    21,810.24x = 229,662,669.60
  5. Step 5: Solve for x
    x = 229,662,669.60/21,810.24
  6. Step 6: Final answer
    x = 10,530.04

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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.