Home / 31,139.84-46,702.78-8,948.27

Finding the Fourth Proportional to 31,139.84, 46,702.78 and 8,948.27

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Solution

The fourth proportional to 31,139.84, 46,702.78 and 8,948.27 is: 13,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,139.84 : 46,702.78 = 8,948.27 : x
  2. Step 2: Convert to fraction form
    31,139.84/46,702.78 = 8,948.27/x
  3. Step 3: Cross multiply
    31,139.84x = 46,702.78 × 8,948.27
  4. Step 4: Simplify right side
    31,139.84x = 417,909,179.58
  5. Step 5: Solve for x
    x = 417,909,179.58/31,139.84
  6. Step 6: Final answer
    x = 13,420.40

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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.