Home / 31,458.51-47,177.78-10,394.66

Finding the Fourth Proportional to 31,458.51, 47,177.78 and 10,394.66

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Solution

The fourth proportional to 31,458.51, 47,177.78 and 10,394.66 is: 15,588.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,458.51 : 47,177.78 = 10,394.66 : x
  2. Step 2: Convert to fraction form
    31,458.51/47,177.78 = 10,394.66/x
  3. Step 3: Cross multiply
    31,458.51x = 47,177.78 × 10,394.66
  4. Step 4: Simplify right side
    31,458.51x = 490,397,048.63
  5. Step 5: Solve for x
    x = 490,397,048.63/31,458.51
  6. Step 6: Final answer
    x = 15,588.69

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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.