Home / 21,113.01-31,669.49-10,013.64

Finding the Fourth Proportional to 21,113.01, 31,669.49 and 10,013.64

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Solution

The fourth proportional to 21,113.01, 31,669.49 and 10,013.64 is: 15,020.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,113.01 : 31,669.49 = 10,013.64 : x
  2. Step 2: Convert to fraction form
    21,113.01/31,669.49 = 10,013.64/x
  3. Step 3: Cross multiply
    21,113.01x = 31,669.49 × 10,013.64
  4. Step 4: Simplify right side
    21,113.01x = 317,126,821.78
  5. Step 5: Solve for x
    x = 317,126,821.78/21,113.01
  6. Step 6: Final answer
    x = 15,020.45

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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.