Home / 34,245.12-47,259.04-20,108.16

Finding the Fourth Proportional to 34,245.12, 47,259.04 and 20,108.16

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Solution

The fourth proportional to 34,245.12, 47,259.04 and 20,108.16 is: 27,749.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,245.12 : 47,259.04 = 20,108.16 : x
  2. Step 2: Convert to fraction form
    34,245.12/47,259.04 = 20,108.16/x
  3. Step 3: Cross multiply
    34,245.12x = 47,259.04 × 20,108.16
  4. Step 4: Simplify right side
    34,245.12x = 950,292,337.77
  5. Step 5: Solve for x
    x = 950,292,337.77/34,245.12
  6. Step 6: Final answer
    x = 27,749.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.