Home / 15,326.78-22,987.74-4,231.40

Finding the Fourth Proportional to 15,326.78, 22,987.74 and 4,231.40

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Solution

The fourth proportional to 15,326.78, 22,987.74 and 4,231.40 is: 6,346.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326.78 : 22,987.74 = 4,231.40 : x
  2. Step 2: Convert to fraction form
    15,326.78/22,987.74 = 4,231.40/x
  3. Step 3: Cross multiply
    15,326.78x = 22,987.74 × 4,231.40
  4. Step 4: Simplify right side
    15,326.78x = 97,270,323.04
  5. Step 5: Solve for x
    x = 97,270,323.04/15,326.78
  6. Step 6: Final answer
    x = 6,346.43

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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.