Home / 31,336.47-47,009.10-9,151.49

Finding the Fourth Proportional to 31,336.47, 47,009.10 and 9,151.49

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Solution

The fourth proportional to 31,336.47, 47,009.10 and 9,151.49 is: 13,728.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,336.47 : 47,009.10 = 9,151.49 : x
  2. Step 2: Convert to fraction form
    31,336.47/47,009.10 = 9,151.49/x
  3. Step 3: Cross multiply
    31,336.47x = 47,009.10 × 9,151.49
  4. Step 4: Simplify right side
    31,336.47x = 430,203,073.51
  5. Step 5: Solve for x
    x = 430,203,073.51/31,336.47
  6. Step 6: Final answer
    x = 13,728.51

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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.