Home / 34,390.80-47,466.72-21,813.12

Finding the Fourth Proportional to 34,390.80, 47,466.72 and 21,813.12

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Solution

The fourth proportional to 34,390.80, 47,466.72 and 21,813.12 is: 30,106.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,390.80 : 47,466.72 = 21,813.12 : x
  2. Step 2: Convert to fraction form
    34,390.80/47,466.72 = 21,813.12/x
  3. Step 3: Cross multiply
    34,390.80x = 47,466.72 × 21,813.12
  4. Step 4: Simplify right side
    34,390.80x = 1,035,397,259.37
  5. Step 5: Solve for x
    x = 1,035,397,259.37/34,390.80
  6. Step 6: Final answer
    x = 30,106.81

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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.