Home / 22,779.29-31,438.88-13,825.06

Finding the Fourth Proportional to 22,779.29, 31,438.88 and 13,825.06

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Solution

The fourth proportional to 22,779.29, 31,438.88 and 13,825.06 is: 19,080.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,779.29 : 31,438.88 = 13,825.06 : x
  2. Step 2: Convert to fraction form
    22,779.29/31,438.88 = 13,825.06/x
  3. Step 3: Cross multiply
    22,779.29x = 31,438.88 × 13,825.06
  4. Step 4: Simplify right side
    22,779.29x = 434,644,254.61
  5. Step 5: Solve for x
    x = 434,644,254.61/22,779.29
  6. Step 6: Final answer
    x = 19,080.68

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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.