Home / 21,389.40-32,089.50-17,266.86

Finding the Fourth Proportional to 21,389.40, 32,089.50 and 17,266.86

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Solution

The fourth proportional to 21,389.40, 32,089.50 and 17,266.86 is: 25,904.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,389.40 : 32,089.50 = 17,266.86 : x
  2. Step 2: Convert to fraction form
    21,389.40/32,089.50 = 17,266.86/x
  3. Step 3: Cross multiply
    21,389.40x = 32,089.50 × 17,266.86
  4. Step 4: Simplify right side
    21,389.40x = 554,084,903.97
  5. Step 5: Solve for x
    x = 554,084,903.97/21,389.40
  6. Step 6: Final answer
    x = 25,904.65

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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.