Home / 21,923.33-30,247.02-13,416.58

Finding the Fourth Proportional to 21,923.33, 30,247.02 and 13,416.58

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Solution

The fourth proportional to 21,923.33, 30,247.02 and 13,416.58 is: 18,510.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923.33 : 30,247.02 = 13,416.58 : x
  2. Step 2: Convert to fraction form
    21,923.33/30,247.02 = 13,416.58/x
  3. Step 3: Cross multiply
    21,923.33x = 30,247.02 × 13,416.58
  4. Step 4: Simplify right side
    21,923.33x = 405,811,437.66
  5. Step 5: Solve for x
    x = 405,811,437.66/21,923.33
  6. Step 6: Final answer
    x = 18,510.49

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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.