Home / 31,278.02-46,917.12-7,585.47

Finding the Fourth Proportional to 31,278.02, 46,917.12 and 7,585.47

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Solution

The fourth proportional to 31,278.02, 46,917.12 and 7,585.47 is: 11,378.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,278.02 : 46,917.12 = 7,585.47 : x
  2. Step 2: Convert to fraction form
    31,278.02/46,917.12 = 7,585.47/x
  3. Step 3: Cross multiply
    31,278.02x = 46,917.12 × 7,585.47
  4. Step 4: Simplify right side
    31,278.02x = 355,888,406.25
  5. Step 5: Solve for x
    x = 355,888,406.25/31,278.02
  6. Step 6: Final answer
    x = 11,378.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.