Home / 18,018.82-26,909.95-15,357.98

Finding the Fourth Proportional to 18,018.82, 26,909.95 and 15,357.98

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Solution

The fourth proportional to 18,018.82, 26,909.95 and 15,357.98 is: 22,936.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.82 : 26,909.95 = 15,357.98 : x
  2. Step 2: Convert to fraction form
    18,018.82/26,909.95 = 15,357.98/x
  3. Step 3: Cross multiply
    18,018.82x = 26,909.95 × 15,357.98
  4. Step 4: Simplify right side
    18,018.82x = 413,282,473.90
  5. Step 5: Solve for x
    x = 413,282,473.90/18,018.82
  6. Step 6: Final answer
    x = 22,936.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.