Home / 21,503.36-29,674.52-12,071.92

Finding the Fourth Proportional to 21,503.36, 29,674.52 and 12,071.92

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Solution

The fourth proportional to 21,503.36, 29,674.52 and 12,071.92 is: 16,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503.36 : 29,674.52 = 12,071.92 : x
  2. Step 2: Convert to fraction form
    21,503.36/29,674.52 = 12,071.92/x
  3. Step 3: Cross multiply
    21,503.36x = 29,674.52 × 12,071.92
  4. Step 4: Simplify right side
    21,503.36x = 358,228,431.48
  5. Step 5: Solve for x
    x = 358,228,431.48/21,503.36
  6. Step 6: Final answer
    x = 16,659.18

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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.