Home / 20,723.04-28,601.10-12,225.33

Finding the Fourth Proportional to 20,723.04, 28,601.10 and 12,225.33

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Solution

The fourth proportional to 20,723.04, 28,601.10 and 12,225.33 is: 16,872.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.04 : 28,601.10 = 12,225.33 : x
  2. Step 2: Convert to fraction form
    20,723.04/28,601.10 = 12,225.33/x
  3. Step 3: Cross multiply
    20,723.04x = 28,601.10 × 12,225.33
  4. Step 4: Simplify right side
    20,723.04x = 349,657,885.86
  5. Step 5: Solve for x
    x = 349,657,885.86/20,723.04
  6. Step 6: Final answer
    x = 16,872.91

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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.