Home / 47,279.08-70,918.84-13,999.77

Finding the Fourth Proportional to 47,279.08, 70,918.84 and 13,999.77

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Solution

The fourth proportional to 47,279.08, 70,918.84 and 13,999.77 is: 20,999.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,279.08 : 70,918.84 = 13,999.77 : x
  2. Step 2: Convert to fraction form
    47,279.08/70,918.84 = 13,999.77/x
  3. Step 3: Cross multiply
    47,279.08x = 70,918.84 × 13,999.77
  4. Step 4: Simplify right side
    47,279.08x = 992,847,094.07
  5. Step 5: Solve for x
    x = 992,847,094.07/47,279.08
  6. Step 6: Final answer
    x = 20,999.71

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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.