Home / 21,807.24-30,094.38-12,374.79

Finding the Fourth Proportional to 21,807.24, 30,094.38 and 12,374.79

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Solution

The fourth proportional to 21,807.24, 30,094.38 and 12,374.79 is: 17,077.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,807.24 : 30,094.38 = 12,374.79 : x
  2. Step 2: Convert to fraction form
    21,807.24/30,094.38 = 12,374.79/x
  3. Step 3: Cross multiply
    21,807.24x = 30,094.38 × 12,374.79
  4. Step 4: Simplify right side
    21,807.24x = 372,411,632.68
  5. Step 5: Solve for x
    x = 372,411,632.68/21,807.24
  6. Step 6: Final answer
    x = 17,077.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.