Home / 31,027.77-42,821.48-18,284.93

Finding the Fourth Proportional to 31,027.77, 42,821.48 and 18,284.93

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Solution

The fourth proportional to 31,027.77, 42,821.48 and 18,284.93 is: 25,235.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,027.77 : 42,821.48 = 18,284.93 : x
  2. Step 2: Convert to fraction form
    31,027.77/42,821.48 = 18,284.93/x
  3. Step 3: Cross multiply
    31,027.77x = 42,821.48 × 18,284.93
  4. Step 4: Simplify right side
    31,027.77x = 782,987,458.76
  5. Step 5: Solve for x
    x = 782,987,458.76/31,027.77
  6. Step 6: Final answer
    x = 25,235.05

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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.