Home / 34,697.16-47,881.80-20,556.72

Finding the Fourth Proportional to 34,697.16, 47,881.80 and 20,556.72

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Solution

The fourth proportional to 34,697.16, 47,881.80 and 20,556.72 is: 28,368.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,697.16 : 47,881.80 = 20,556.72 : x
  2. Step 2: Convert to fraction form
    34,697.16/47,881.80 = 20,556.72/x
  3. Step 3: Cross multiply
    34,697.16x = 47,881.80 × 20,556.72
  4. Step 4: Simplify right side
    34,697.16x = 984,292,755.70
  5. Step 5: Solve for x
    x = 984,292,755.70/34,697.16
  6. Step 6: Final answer
    x = 28,368.11

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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.