Home / 35,476.40-53,128.20-16,986.80

Finding the Fourth Proportional to 35,476.40, 53,128.20 and 16,986.80

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Solution

The fourth proportional to 35,476.40, 53,128.20 and 16,986.80 is: 25,438.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,476.40 : 53,128.20 = 16,986.80 : x
  2. Step 2: Convert to fraction form
    35,476.40/53,128.20 = 16,986.80/x
  3. Step 3: Cross multiply
    35,476.40x = 53,128.20 × 16,986.80
  4. Step 4: Simplify right side
    35,476.40x = 902,478,107.76
  5. Step 5: Solve for x
    x = 902,478,107.76/35,476.40
  6. Step 6: Final answer
    x = 25,438.83

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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.