Home / 47,945.16-71,918.34-18,364.77

Finding the Fourth Proportional to 47,945.16, 71,918.34 and 18,364.77

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Solution

The fourth proportional to 47,945.16, 71,918.34 and 18,364.77 is: 27,547.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,945.16 : 71,918.34 = 18,364.77 : x
  2. Step 2: Convert to fraction form
    47,945.16/71,918.34 = 18,364.77/x
  3. Step 3: Cross multiply
    47,945.16x = 71,918.34 × 18,364.77
  4. Step 4: Simplify right side
    47,945.16x = 1,320,763,772.88
  5. Step 5: Solve for x
    x = 1,320,763,772.88/47,945.16
  6. Step 6: Final answer
    x = 27,547.38

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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.