Home / 31,140.39-46,705.56-8,948.70

Finding the Fourth Proportional to 31,140.39, 46,705.56 and 8,948.70

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Solution

The fourth proportional to 31,140.39, 46,705.56 and 8,948.70 is: 13,421.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,140.39 : 46,705.56 = 8,948.70 : x
  2. Step 2: Convert to fraction form
    31,140.39/46,705.56 = 8,948.70/x
  3. Step 3: Cross multiply
    31,140.39x = 46,705.56 × 8,948.70
  4. Step 4: Simplify right side
    31,140.39x = 417,954,044.77
  5. Step 5: Solve for x
    x = 417,954,044.77/31,140.39
  6. Step 6: Final answer
    x = 13,421.61

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1.5x scale

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.