Home / 21,395.79-32,091.86-8,399.24

Finding the Fourth Proportional to 21,395.79, 32,091.86 and 8,399.24

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Solution

The fourth proportional to 21,395.79, 32,091.86 and 8,399.24 is: 12,598.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,395.79 : 32,091.86 = 8,399.24 : x
  2. Step 2: Convert to fraction form
    21,395.79/32,091.86 = 8,399.24/x
  3. Step 3: Cross multiply
    21,395.79x = 32,091.86 × 8,399.24
  4. Step 4: Simplify right side
    21,395.79x = 269,547,234.19
  5. Step 5: Solve for x
    x = 269,547,234.19/21,395.79
  6. Step 6: Final answer
    x = 12,598.14

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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.