Home / 34,291.72-47,320.50-21,720.52

Finding the Fourth Proportional to 34,291.72, 47,320.50 and 21,720.52

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Solution

The fourth proportional to 34,291.72, 47,320.50 and 21,720.52 is: 29,973.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,291.72 : 47,320.50 = 21,720.52 : x
  2. Step 2: Convert to fraction form
    34,291.72/47,320.50 = 21,720.52/x
  3. Step 3: Cross multiply
    34,291.72x = 47,320.50 × 21,720.52
  4. Step 4: Simplify right side
    34,291.72x = 1,027,825,866.66
  5. Step 5: Solve for x
    x = 1,027,825,866.66/34,291.72
  6. Step 6: Final answer
    x = 29,973.00

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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.