Home / 21,528.71-29,710.50-12,097.25

Finding the Fourth Proportional to 21,528.71, 29,710.50 and 12,097.25

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Solution

The fourth proportional to 21,528.71, 29,710.50 and 12,097.25 is: 16,694.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,528.71 : 29,710.50 = 12,097.25 : x
  2. Step 2: Convert to fraction form
    21,528.71/29,710.50 = 12,097.25/x
  3. Step 3: Cross multiply
    21,528.71x = 29,710.50 × 12,097.25
  4. Step 4: Simplify right side
    21,528.71x = 359,415,346.13
  5. Step 5: Solve for x
    x = 359,415,346.13/21,528.71
  6. Step 6: Final answer
    x = 16,694.70

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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.