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Finding the Fourth Proportional to 34,377, 51,557.58 and 19,390.68

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Solution

The fourth proportional to 34,377, 51,557.58 and 19,390.68 is: 29,081.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,377 : 51,557.58 = 19,390.68 : x
  2. Step 2: Convert to fraction form
    34,377/51,557.58 = 19,390.68/x
  3. Step 3: Cross multiply
    34,377x = 51,557.58 × 19,390.68
  4. Step 4: Simplify right side
    34,377x = 999,736,535.35
  5. Step 5: Solve for x
    x = 999,736,535.35/34,377
  6. Step 6: Final answer
    x = 29,081.55

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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.