Home / 21,800.10-32,700.15-10,106.94

Finding the Fourth Proportional to 21,800.10, 32,700.15 and 10,106.94

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Solution

The fourth proportional to 21,800.10, 32,700.15 and 10,106.94 is: 15,160.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,800.10 : 32,700.15 = 10,106.94 : x
  2. Step 2: Convert to fraction form
    21,800.10/32,700.15 = 10,106.94/x
  3. Step 3: Cross multiply
    21,800.10x = 32,700.15 × 10,106.94
  4. Step 4: Simplify right side
    21,800.10x = 330,498,454.04
  5. Step 5: Solve for x
    x = 330,498,454.04/21,800.10
  6. Step 6: Final answer
    x = 15,160.41

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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.