Home / 42,018.07-57,984.66-23,155.21

Finding the Fourth Proportional to 42,018.07, 57,984.66 and 23,155.21

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Solution

The fourth proportional to 42,018.07, 57,984.66 and 23,155.21 is: 31,954.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,018.07 : 57,984.66 = 23,155.21 : x
  2. Step 2: Convert to fraction form
    42,018.07/57,984.66 = 23,155.21/x
  3. Step 3: Cross multiply
    42,018.07x = 57,984.66 × 23,155.21
  4. Step 4: Simplify right side
    42,018.07x = 1,342,646,979.08
  5. Step 5: Solve for x
    x = 1,342,646,979.08/42,018.07
  6. Step 6: Final answer
    x = 31,954.04

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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.