Home / 34,772.95-47,987.49-21,156.31

Finding the Fourth Proportional to 34,772.95, 47,987.49 and 21,156.31

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Solution

The fourth proportional to 34,772.95, 47,987.49 and 21,156.31 is: 29,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,772.95 : 47,987.49 = 21,156.31 : x
  2. Step 2: Convert to fraction form
    34,772.95/47,987.49 = 21,156.31/x
  3. Step 3: Cross multiply
    34,772.95x = 47,987.49 × 21,156.31
  4. Step 4: Simplify right side
    34,772.95x = 1,015,237,974.62
  5. Step 5: Solve for x
    x = 1,015,237,974.62/34,772.95
  6. Step 6: Final answer
    x = 29,196.20

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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.