Home / 21,742.71-32,603.54-10,636.40

Finding the Fourth Proportional to 21,742.71, 32,603.54 and 10,636.40

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Solution

The fourth proportional to 21,742.71, 32,603.54 and 10,636.40 is: 15,949.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,742.71 : 32,603.54 = 10,636.40 : x
  2. Step 2: Convert to fraction form
    21,742.71/32,603.54 = 10,636.40/x
  3. Step 3: Cross multiply
    21,742.71x = 32,603.54 × 10,636.40
  4. Step 4: Simplify right side
    21,742.71x = 346,784,076.66
  5. Step 5: Solve for x
    x = 346,784,076.66/21,742.71
  6. Step 6: Final answer
    x = 15,949.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.