Home / 42,017.24-57,964.91-28,400.91

Finding the Fourth Proportional to 42,017.24, 57,964.91 and 28,400.91

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Solution

The fourth proportional to 42,017.24, 57,964.91 and 28,400.91 is: 39,180.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,017.24 : 57,964.91 = 28,400.91 : x
  2. Step 2: Convert to fraction form
    42,017.24/57,964.91 = 28,400.91/x
  3. Step 3: Cross multiply
    42,017.24x = 57,964.91 × 28,400.91
  4. Step 4: Simplify right side
    42,017.24x = 1,646,256,050.06
  5. Step 5: Solve for x
    x = 1,646,256,050.06/42,017.24
  6. Step 6: Final answer
    x = 39,180.49

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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.