Home / 21,055.57-29,053.38-12,101.40

Finding the Fourth Proportional to 21,055.57, 29,053.38 and 12,101.40

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Solution

The fourth proportional to 21,055.57, 29,053.38 and 12,101.40 is: 16,698.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.57 : 29,053.38 = 12,101.40 : x
  2. Step 2: Convert to fraction form
    21,055.57/29,053.38 = 12,101.40/x
  3. Step 3: Cross multiply
    21,055.57x = 29,053.38 × 12,101.40
  4. Step 4: Simplify right side
    21,055.57x = 351,586,618.11
  5. Step 5: Solve for x
    x = 351,586,618.11/21,055.57
  6. Step 6: Final answer
    x = 16,698.03

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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.