Home / 34,281.78-47,308.23-19,377.78

Finding the Fourth Proportional to 34,281.78, 47,308.23 and 19,377.78

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Solution

The fourth proportional to 34,281.78, 47,308.23 and 19,377.78 is: 26,740.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,281.78 : 47,308.23 = 19,377.78 : x
  2. Step 2: Convert to fraction form
    34,281.78/47,308.23 = 19,377.78/x
  3. Step 3: Cross multiply
    34,281.78x = 47,308.23 × 19,377.78
  4. Step 4: Simplify right side
    34,281.78x = 916,728,473.13
  5. Step 5: Solve for x
    x = 916,728,473.13/34,281.78
  6. Step 6: Final answer
    x = 26,740.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.