Home / 20,700.36-31,001.13-11,326.37

Finding the Fourth Proportional to 20,700.36, 31,001.13 and 11,326.37

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Solution

The fourth proportional to 20,700.36, 31,001.13 and 11,326.37 is: 16,962.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,700.36 : 31,001.13 = 11,326.37 : x
  2. Step 2: Convert to fraction form
    20,700.36/31,001.13 = 11,326.37/x
  3. Step 3: Cross multiply
    20,700.36x = 31,001.13 × 11,326.37
  4. Step 4: Simplify right side
    20,700.36x = 351,130,113.79
  5. Step 5: Solve for x
    x = 351,130,113.79/20,700.36
  6. Step 6: Final answer
    x = 16,962.51

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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.