Home / 42,359.78-63,521.21-14,274.60

Finding the Fourth Proportional to 42,359.78, 63,521.21 and 14,274.60

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Solution

The fourth proportional to 42,359.78, 63,521.21 and 14,274.60 is: 21,405.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,359.78 : 63,521.21 = 14,274.60 : x
  2. Step 2: Convert to fraction form
    42,359.78/63,521.21 = 14,274.60/x
  3. Step 3: Cross multiply
    42,359.78x = 63,521.21 × 14,274.60
  4. Step 4: Simplify right side
    42,359.78x = 906,739,864.27
  5. Step 5: Solve for x
    x = 906,739,864.27/42,359.78
  6. Step 6: Final answer
    x = 21,405.68

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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.