Home / 21,289.58-29,376.84-12,335.17

Finding the Fourth Proportional to 21,289.58, 29,376.84 and 12,335.17

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Solution

The fourth proportional to 21,289.58, 29,376.84 and 12,335.17 is: 17,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289.58 : 29,376.84 = 12,335.17 : x
  2. Step 2: Convert to fraction form
    21,289.58/29,376.84 = 12,335.17/x
  3. Step 3: Cross multiply
    21,289.58x = 29,376.84 × 12,335.17
  4. Step 4: Simplify right side
    21,289.58x = 362,368,315.46
  5. Step 5: Solve for x
    x = 362,368,315.46/21,289.58
  6. Step 6: Final answer
    x = 17,020.92

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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.