Home / 21,656.37-29,885.57-12,225.33

Finding the Fourth Proportional to 21,656.37, 29,885.57 and 12,225.33

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Solution

The fourth proportional to 21,656.37, 29,885.57 and 12,225.33 is: 16,870.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,656.37 : 29,885.57 = 12,225.33 : x
  2. Step 2: Convert to fraction form
    21,656.37/29,885.57 = 12,225.33/x
  3. Step 3: Cross multiply
    21,656.37x = 29,885.57 × 12,225.33
  4. Step 4: Simplify right side
    21,656.37x = 365,360,894.36
  5. Step 5: Solve for x
    x = 365,360,894.36/21,656.37
  6. Step 6: Final answer
    x = 16,870.83

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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.