Home / 42,585.21-63,902.39-19,211.63

Finding the Fourth Proportional to 42,585.21, 63,902.39 and 19,211.63

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Solution

The fourth proportional to 42,585.21, 63,902.39 and 19,211.63 is: 28,828.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,585.21 : 63,902.39 = 19,211.63 : x
  2. Step 2: Convert to fraction form
    42,585.21/63,902.39 = 19,211.63/x
  3. Step 3: Cross multiply
    42,585.21x = 63,902.39 × 19,211.63
  4. Step 4: Simplify right side
    42,585.21x = 1,227,668,657.23
  5. Step 5: Solve for x
    x = 1,227,668,657.23/42,585.21
  6. Step 6: Final answer
    x = 28,828.52

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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.