Home / 21,264.76-29,296.23-15,286.08

Finding the Fourth Proportional to 21,264.76, 29,296.23 and 15,286.08

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Solution

The fourth proportional to 21,264.76, 29,296.23 and 15,286.08 is: 21,059.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,264.76 : 29,296.23 = 15,286.08 : x
  2. Step 2: Convert to fraction form
    21,264.76/29,296.23 = 15,286.08/x
  3. Step 3: Cross multiply
    21,264.76x = 29,296.23 × 15,286.08
  4. Step 4: Simplify right side
    21,264.76x = 447,824,515.48
  5. Step 5: Solve for x
    x = 447,824,515.48/21,264.76
  6. Step 6: Final answer
    x = 21,059.47

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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.