Home / 22,779.88-31,422-14,710.45

Finding the Fourth Proportional to 22,779.88, 31,422 and 14,710.45

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Solution

The fourth proportional to 22,779.88, 31,422 and 14,710.45 is: 20,291.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,779.88 : 31,422 = 14,710.45 : x
  2. Step 2: Convert to fraction form
    22,779.88/31,422 = 14,710.45/x
  3. Step 3: Cross multiply
    22,779.88x = 31,422 × 14,710.45
  4. Step 4: Simplify right side
    22,779.88x = 462,231,759.90
  5. Step 5: Solve for x
    x = 462,231,759.90/22,779.88
  6. Step 6: Final answer
    x = 20,291.23

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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.