Home / 21,586.10-32,306.00-13,271.40

Finding the Fourth Proportional to 21,586.10, 32,306.00 and 13,271.40

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Solution

The fourth proportional to 21,586.10, 32,306.00 and 13,271.40 is: 19,862.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,586.10 : 32,306.00 = 13,271.40 : x
  2. Step 2: Convert to fraction form
    21,586.10/32,306.00 = 13,271.40/x
  3. Step 3: Cross multiply
    21,586.10x = 32,306.00 × 13,271.40
  4. Step 4: Simplify right side
    21,586.10x = 428,745,782.04
  5. Step 5: Solve for x
    x = 428,745,782.04/21,586.10
  6. Step 6: Final answer
    x = 19,862.13

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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.