Home / 20,284.39-27,952.58-15,509.74

Finding the Fourth Proportional to 20,284.39, 27,952.58 and 15,509.74

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Solution

The fourth proportional to 20,284.39, 27,952.58 and 15,509.74 is: 21,372.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.39 : 27,952.58 = 15,509.74 : x
  2. Step 2: Convert to fraction form
    20,284.39/27,952.58 = 15,509.74/x
  3. Step 3: Cross multiply
    20,284.39x = 27,952.58 × 15,509.74
  4. Step 4: Simplify right side
    20,284.39x = 433,537,248.13
  5. Step 5: Solve for x
    x = 433,537,248.13/20,284.39
  6. Step 6: Final answer
    x = 21,372.95

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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.