Home / 31,429.64-47,137.16-9,237.08

Finding the Fourth Proportional to 31,429.64, 47,137.16 and 9,237.08

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Solution

The fourth proportional to 31,429.64, 47,137.16 and 9,237.08 is: 13,853.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,429.64 : 47,137.16 = 9,237.08 : x
  2. Step 2: Convert to fraction form
    31,429.64/47,137.16 = 9,237.08/x
  3. Step 3: Cross multiply
    31,429.64x = 47,137.16 × 9,237.08
  4. Step 4: Simplify right side
    31,429.64x = 435,409,717.89
  5. Step 5: Solve for x
    x = 435,409,717.89/31,429.64
  6. Step 6: Final answer
    x = 13,853.47

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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.