Home / 21,248.79-29,323.35-11,817.35

Finding the Fourth Proportional to 21,248.79, 29,323.35 and 11,817.35

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Solution

The fourth proportional to 21,248.79, 29,323.35 and 11,817.35 is: 16,307.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.79 : 29,323.35 = 11,817.35 : x
  2. Step 2: Convert to fraction form
    21,248.79/29,323.35 = 11,817.35/x
  3. Step 3: Cross multiply
    21,248.79x = 29,323.35 × 11,817.35
  4. Step 4: Simplify right side
    21,248.79x = 346,524,290.12
  5. Step 5: Solve for x
    x = 346,524,290.12/21,248.79
  6. Step 6: Final answer
    x = 16,307.95

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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.