Home / 31,836-47,417.70-30,170.64

Finding the Fourth Proportional to 31,836, 47,417.70 and 30,170.64

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Solution

The fourth proportional to 31,836, 47,417.70 and 30,170.64 is: 44,937.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,836 : 47,417.70 = 30,170.64 : x
  2. Step 2: Convert to fraction form
    31,836/47,417.70 = 30,170.64/x
  3. Step 3: Cross multiply
    31,836x = 47,417.70 × 30,170.64
  4. Step 4: Simplify right side
    31,836x = 1,430,622,356.33
  5. Step 5: Solve for x
    x = 1,430,622,356.33/31,836
  6. Step 6: Final answer
    x = 44,937.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.