Home / 31,669.38-43,700.58-22,130.28

Finding the Fourth Proportional to 31,669.38, 43,700.58 and 22,130.28

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Solution

The fourth proportional to 31,669.38, 43,700.58 and 22,130.28 is: 30,537.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,669.38 : 43,700.58 = 22,130.28 : x
  2. Step 2: Convert to fraction form
    31,669.38/43,700.58 = 22,130.28/x
  3. Step 3: Cross multiply
    31,669.38x = 43,700.58 × 22,130.28
  4. Step 4: Simplify right side
    31,669.38x = 967,106,071.56
  5. Step 5: Solve for x
    x = 967,106,071.56/31,669.38
  6. Step 6: Final answer
    x = 30,537.58

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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.