Home / 18,904.33-26,083.51-15,890.91

Finding the Fourth Proportional to 18,904.33, 26,083.51 and 15,890.91

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Solution

The fourth proportional to 18,904.33, 26,083.51 and 15,890.91 is: 21,925.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.33 : 26,083.51 = 15,890.91 : x
  2. Step 2: Convert to fraction form
    18,904.33/26,083.51 = 15,890.91/x
  3. Step 3: Cross multiply
    18,904.33x = 26,083.51 × 15,890.91
  4. Step 4: Simplify right side
    18,904.33x = 414,490,709.89
  5. Step 5: Solve for x
    x = 414,490,709.89/18,904.33
  6. Step 6: Final answer
    x = 21,925.70

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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.