Home / 42,539.58-63,818.49-12,959.80

Finding the Fourth Proportional to 42,539.58, 63,818.49 and 12,959.80

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Solution

The fourth proportional to 42,539.58, 63,818.49 and 12,959.80 is: 19,442.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,539.58 : 63,818.49 = 12,959.80 : x
  2. Step 2: Convert to fraction form
    42,539.58/63,818.49 = 12,959.80/x
  3. Step 3: Cross multiply
    42,539.58x = 63,818.49 × 12,959.80
  4. Step 4: Simplify right side
    42,539.58x = 827,074,482.81
  5. Step 5: Solve for x
    x = 827,074,482.81/42,539.58
  6. Step 6: Final answer
    x = 19,442.47

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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.