Home / 21,492.62-29,659.33-11,931.95

Finding the Fourth Proportional to 21,492.62, 29,659.33 and 11,931.95

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Solution

The fourth proportional to 21,492.62, 29,659.33 and 11,931.95 is: 16,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,492.62 : 29,659.33 = 11,931.95 : x
  2. Step 2: Convert to fraction form
    21,492.62/29,659.33 = 11,931.95/x
  3. Step 3: Cross multiply
    21,492.62x = 29,659.33 × 11,931.95
  4. Step 4: Simplify right side
    21,492.62x = 353,893,642.59
  5. Step 5: Solve for x
    x = 353,893,642.59/21,492.62
  6. Step 6: Final answer
    x = 16,465.82

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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.