Home / 21,860.24-30,158.50-13,462.16

Finding the Fourth Proportional to 21,860.24, 30,158.50 and 13,462.16

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Solution

The fourth proportional to 21,860.24, 30,158.50 and 13,462.16 is: 18,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860.24 : 30,158.50 = 13,462.16 : x
  2. Step 2: Convert to fraction form
    21,860.24/30,158.50 = 13,462.16/x
  3. Step 3: Cross multiply
    21,860.24x = 30,158.50 × 13,462.16
  4. Step 4: Simplify right side
    21,860.24x = 405,998,552.36
  5. Step 5: Solve for x
    x = 405,998,552.36/21,860.24
  6. Step 6: Final answer
    x = 18,572.47

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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.