Home / 19,231.94-26,518.64-15,772.08

Finding the Fourth Proportional to 19,231.94, 26,518.64 and 15,772.08

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Solution

The fourth proportional to 19,231.94, 26,518.64 and 15,772.08 is: 21,747.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,231.94 : 26,518.64 = 15,772.08 : x
  2. Step 2: Convert to fraction form
    19,231.94/26,518.64 = 15,772.08/x
  3. Step 3: Cross multiply
    19,231.94x = 26,518.64 × 15,772.08
  4. Step 4: Simplify right side
    19,231.94x = 418,254,111.57
  5. Step 5: Solve for x
    x = 418,254,111.57/19,231.94
  6. Step 6: Final answer
    x = 21,747.89

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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.