Home / 46,908.78-70,348.45-13,631.15

Finding the Fourth Proportional to 46,908.78, 70,348.45 and 13,631.15

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Solution

The fourth proportional to 46,908.78, 70,348.45 and 13,631.15 is: 20,442.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,908.78 : 70,348.45 = 13,631.15 : x
  2. Step 2: Convert to fraction form
    46,908.78/70,348.45 = 13,631.15/x
  3. Step 3: Cross multiply
    46,908.78x = 70,348.45 × 13,631.15
  4. Step 4: Simplify right side
    46,908.78x = 958,930,274.22
  5. Step 5: Solve for x
    x = 958,930,274.22/46,908.78
  6. Step 6: Final answer
    x = 20,442.45

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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.