Home / 31,138.81-46,708.40-25,644.49

Finding the Fourth Proportional to 31,138.81, 46,708.40 and 25,644.49

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Solution

The fourth proportional to 31,138.81, 46,708.40 and 25,644.49 is: 38,466.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,138.81 : 46,708.40 = 25,644.49 : x
  2. Step 2: Convert to fraction form
    31,138.81/46,708.40 = 25,644.49/x
  3. Step 3: Cross multiply
    31,138.81x = 46,708.40 × 25,644.49
  4. Step 4: Simplify right side
    31,138.81x = 1,197,812,968.49
  5. Step 5: Solve for x
    x = 1,197,812,968.49/31,138.81
  6. Step 6: Final answer
    x = 38,466.88

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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.