Home / 20,922.98-31,381.74-9,233.47

Finding the Fourth Proportional to 20,922.98, 31,381.74 and 9,233.47

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Solution

The fourth proportional to 20,922.98, 31,381.74 and 9,233.47 is: 13,849.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922.98 : 31,381.74 = 9,233.47 : x
  2. Step 2: Convert to fraction form
    20,922.98/31,381.74 = 9,233.47/x
  3. Step 3: Cross multiply
    20,922.98x = 31,381.74 × 9,233.47
  4. Step 4: Simplify right side
    20,922.98x = 289,762,354.84
  5. Step 5: Solve for x
    x = 289,762,354.84/20,922.98
  6. Step 6: Final answer
    x = 13,849.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.