Home / 30,534.13-45,801.78-20,070.94

Finding the Fourth Proportional to 30,534.13, 45,801.78 and 20,070.94

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Solution

The fourth proportional to 30,534.13, 45,801.78 and 20,070.94 is: 30,106.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,534.13 : 45,801.78 = 20,070.94 : x
  2. Step 2: Convert to fraction form
    30,534.13/45,801.78 = 20,070.94/x
  3. Step 3: Cross multiply
    30,534.13x = 45,801.78 × 20,070.94
  4. Step 4: Simplify right side
    30,534.13x = 919,284,778.27
  5. Step 5: Solve for x
    x = 919,284,778.27/30,534.13
  6. Step 6: Final answer
    x = 30,106.79

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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.