Home / 21,398.07-32,097.02-5,815.65

Finding the Fourth Proportional to 21,398.07, 32,097.02 and 5,815.65

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Solution

The fourth proportional to 21,398.07, 32,097.02 and 5,815.65 is: 8,723.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,398.07 : 32,097.02 = 5,815.65 : x
  2. Step 2: Convert to fraction form
    21,398.07/32,097.02 = 5,815.65/x
  3. Step 3: Cross multiply
    21,398.07x = 32,097.02 × 5,815.65
  4. Step 4: Simplify right side
    21,398.07x = 186,665,005.28
  5. Step 5: Solve for x
    x = 186,665,005.28/21,398.07
  6. Step 6: Final answer
    x = 8,723.45

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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.