Home / 31,218-46,827.05-12,750

Finding the Fourth Proportional to 31,218, 46,827.05 and 12,750

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Solution

The fourth proportional to 31,218, 46,827.05 and 12,750 is: 19,125.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,218 : 46,827.05 = 12,750 : x
  2. Step 2: Convert to fraction form
    31,218/46,827.05 = 12,750/x
  3. Step 3: Cross multiply
    31,218x = 46,827.05 × 12,750
  4. Step 4: Simplify right side
    31,218x = 597,044,823.75
  5. Step 5: Solve for x
    x = 597,044,823.75/31,218
  6. Step 6: Final answer
    x = 19,125.02

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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.