Home / 21,036.85-29,030.91-11,476.76

Finding the Fourth Proportional to 21,036.85, 29,030.91 and 11,476.76

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Solution

The fourth proportional to 21,036.85, 29,030.91 and 11,476.76 is: 15,837.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,036.85 : 29,030.91 = 11,476.76 : x
  2. Step 2: Convert to fraction form
    21,036.85/29,030.91 = 11,476.76/x
  3. Step 3: Cross multiply
    21,036.85x = 29,030.91 × 11,476.76
  4. Step 4: Simplify right side
    21,036.85x = 333,180,729.27
  5. Step 5: Solve for x
    x = 333,180,729.27/21,036.85
  6. Step 6: Final answer
    x = 15,837.96

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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.