Home / 22,788.90-31,447.60-16,818.38

Finding the Fourth Proportional to 22,788.90, 31,447.60 and 16,818.38

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Solution

The fourth proportional to 22,788.90, 31,447.60 and 16,818.38 is: 23,208.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,788.90 : 31,447.60 = 16,818.38 : x
  2. Step 2: Convert to fraction form
    22,788.90/31,447.60 = 16,818.38/x
  3. Step 3: Cross multiply
    22,788.90x = 31,447.60 × 16,818.38
  4. Step 4: Simplify right side
    22,788.90x = 528,897,686.89
  5. Step 5: Solve for x
    x = 528,897,686.89/22,788.90
  6. Step 6: Final answer
    x = 23,208.57

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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.