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Finding the Fourth Proportional to 34,420.80, 51,590.70 and 19,643.70

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Solution

The fourth proportional to 34,420.80, 51,590.70 and 19,643.70 is: 29,442.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,420.80 : 51,590.70 = 19,643.70 : x
  2. Step 2: Convert to fraction form
    34,420.80/51,590.70 = 19,643.70/x
  3. Step 3: Cross multiply
    34,420.80x = 51,590.70 × 19,643.70
  4. Step 4: Simplify right side
    34,420.80x = 1,013,432,233.59
  5. Step 5: Solve for x
    x = 1,013,432,233.59/34,420.80
  6. Step 6: Final answer
    x = 29,442.44

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1.5x scale

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.