Home / 31,117.52-46,641.72-12,392.66

Finding the Fourth Proportional to 31,117.52, 46,641.72 and 12,392.66

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Solution

The fourth proportional to 31,117.52, 46,641.72 and 12,392.66 is: 18,575.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,117.52 : 46,641.72 = 12,392.66 : x
  2. Step 2: Convert to fraction form
    31,117.52/46,641.72 = 12,392.66/x
  3. Step 3: Cross multiply
    31,117.52x = 46,641.72 × 12,392.66
  4. Step 4: Simplify right side
    31,117.52x = 578,014,977.78
  5. Step 5: Solve for x
    x = 578,014,977.78/31,117.52
  6. Step 6: Final answer
    x = 18,575.23

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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.