Home / 21,967.34-30,315.02-11,895.89

Finding the Fourth Proportional to 21,967.34, 30,315.02 and 11,895.89

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Solution

The fourth proportional to 21,967.34, 30,315.02 and 11,895.89 is: 16,416.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.34 : 30,315.02 = 11,895.89 : x
  2. Step 2: Convert to fraction form
    21,967.34/30,315.02 = 11,895.89/x
  3. Step 3: Cross multiply
    21,967.34x = 30,315.02 × 11,895.89
  4. Step 4: Simplify right side
    21,967.34x = 360,623,932.21
  5. Step 5: Solve for x
    x = 360,623,932.21/21,967.34
  6. Step 6: Final answer
    x = 16,416.37

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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.