Home / 47,009.12-70,513.83-11,948.78

Finding the Fourth Proportional to 47,009.12, 70,513.83 and 11,948.78

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Solution

The fourth proportional to 47,009.12, 70,513.83 and 11,948.78 is: 17,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,009.12 : 70,513.83 = 11,948.78 : x
  2. Step 2: Convert to fraction form
    47,009.12/70,513.83 = 11,948.78/x
  3. Step 3: Cross multiply
    47,009.12x = 70,513.83 × 11,948.78
  4. Step 4: Simplify right side
    47,009.12x = 842,554,054.88
  5. Step 5: Solve for x
    x = 842,554,054.88/47,009.12
  6. Step 6: Final answer
    x = 17,923.20

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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.