Home / 21,266.48-31,821.96-17,806.16

Finding the Fourth Proportional to 21,266.48, 31,821.96 and 17,806.16

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Solution

The fourth proportional to 21,266.48, 31,821.96 and 17,806.16 is: 26,644.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.48 : 31,821.96 = 17,806.16 : x
  2. Step 2: Convert to fraction form
    21,266.48/31,821.96 = 17,806.16/x
  3. Step 3: Cross multiply
    21,266.48x = 31,821.96 × 17,806.16
  4. Step 4: Simplify right side
    21,266.48x = 566,626,911.27
  5. Step 5: Solve for x
    x = 566,626,911.27/21,266.48
  6. Step 6: Final answer
    x = 26,644.13

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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.