Home / 21,596.28-29,802.92-12,165.45

Finding the Fourth Proportional to 21,596.28, 29,802.92 and 12,165.45

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Solution

The fourth proportional to 21,596.28, 29,802.92 and 12,165.45 is: 16,788.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,596.28 : 29,802.92 = 12,165.45 : x
  2. Step 2: Convert to fraction form
    21,596.28/29,802.92 = 12,165.45/x
  3. Step 3: Cross multiply
    21,596.28x = 29,802.92 × 12,165.45
  4. Step 4: Simplify right side
    21,596.28x = 362,565,872.29
  5. Step 5: Solve for x
    x = 362,565,872.29/21,596.28
  6. Step 6: Final answer
    x = 16,788.35

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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.