Home / 42,021.13-57,989.18-22,900.91

Finding the Fourth Proportional to 42,021.13, 57,989.18 and 22,900.91

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Solution

The fourth proportional to 42,021.13, 57,989.18 and 22,900.91 is: 31,603.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,021.13 : 57,989.18 = 22,900.91 : x
  2. Step 2: Convert to fraction form
    42,021.13/57,989.18 = 22,900.91/x
  3. Step 3: Cross multiply
    42,021.13x = 57,989.18 × 22,900.91
  4. Step 4: Simplify right side
    42,021.13x = 1,328,004,877.65
  5. Step 5: Solve for x
    x = 1,328,004,877.65/42,021.13
  6. Step 6: Final answer
    x = 31,603.26

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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.