Home / 21,992.45-30,360.04-14,737.05

Finding the Fourth Proportional to 21,992.45, 30,360.04 and 14,737.05

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Solution

The fourth proportional to 21,992.45, 30,360.04 and 14,737.05 is: 20,344.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,992.45 : 30,360.04 = 14,737.05 : x
  2. Step 2: Convert to fraction form
    21,992.45/30,360.04 = 14,737.05/x
  3. Step 3: Cross multiply
    21,992.45x = 30,360.04 × 14,737.05
  4. Step 4: Simplify right side
    21,992.45x = 447,417,390.64
  5. Step 5: Solve for x
    x = 447,417,390.64/21,992.45
  6. Step 6: Final answer
    x = 20,344.13

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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.