Home / 34,300.86-47,320.16-20,147.32

Finding the Fourth Proportional to 34,300.86, 47,320.16 and 20,147.32

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Solution

The fourth proportional to 34,300.86, 47,320.16 and 20,147.32 is: 27,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,300.86 : 47,320.16 = 20,147.32 : x
  2. Step 2: Convert to fraction form
    34,300.86/47,320.16 = 20,147.32/x
  3. Step 3: Cross multiply
    34,300.86x = 47,320.16 × 20,147.32
  4. Step 4: Simplify right side
    34,300.86x = 953,374,405.97
  5. Step 5: Solve for x
    x = 953,374,405.97/34,300.86
  6. Step 6: Final answer
    x = 27,794.48

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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.