Home / 21,251.08-29,328.80-12,298.44

Finding the Fourth Proportional to 21,251.08, 29,328.80 and 12,298.44

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Solution

The fourth proportional to 21,251.08, 29,328.80 and 12,298.44 is: 16,973.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,251.08 : 29,328.80 = 12,298.44 : x
  2. Step 2: Convert to fraction form
    21,251.08/29,328.80 = 12,298.44/x
  3. Step 3: Cross multiply
    21,251.08x = 29,328.80 × 12,298.44
  4. Step 4: Simplify right side
    21,251.08x = 360,698,487.07
  5. Step 5: Solve for x
    x = 360,698,487.07/21,251.08
  6. Step 6: Final answer
    x = 16,973.18

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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.