Home / 21,389.36-32,088.62-6,397.66

Finding the Fourth Proportional to 21,389.36, 32,088.62 and 6,397.66

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Solution

The fourth proportional to 21,389.36, 32,088.62 and 6,397.66 is: 9,597.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,389.36 : 32,088.62 = 6,397.66 : x
  2. Step 2: Convert to fraction form
    21,389.36/32,088.62 = 6,397.66/x
  3. Step 3: Cross multiply
    21,389.36x = 32,088.62 × 6,397.66
  4. Step 4: Simplify right side
    21,389.36x = 205,292,016.40
  5. Step 5: Solve for x
    x = 205,292,016.40/21,389.36
  6. Step 6: Final answer
    x = 9,597.86

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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.