Home / 19,366.08-26,740.84-15,781.52

Finding the Fourth Proportional to 19,366.08, 26,740.84 and 15,781.52

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Solution

The fourth proportional to 19,366.08, 26,740.84 and 15,781.52 is: 21,791.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,366.08 : 26,740.84 = 15,781.52 : x
  2. Step 2: Convert to fraction form
    19,366.08/26,740.84 = 15,781.52/x
  3. Step 3: Cross multiply
    19,366.08x = 26,740.84 × 15,781.52
  4. Step 4: Simplify right side
    19,366.08x = 422,011,101.28
  5. Step 5: Solve for x
    x = 422,011,101.28/19,366.08
  6. Step 6: Final answer
    x = 21,791.25

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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.