Home / 35,523.20-53,378.40-19,740.80

Finding the Fourth Proportional to 35,523.20, 53,378.40 and 19,740.80

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Solution

The fourth proportional to 35,523.20, 53,378.40 and 19,740.80 is: 29,663.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,523.20 : 53,378.40 = 19,740.80 : x
  2. Step 2: Convert to fraction form
    35,523.20/53,378.40 = 19,740.80/x
  3. Step 3: Cross multiply
    35,523.20x = 53,378.40 × 19,740.80
  4. Step 4: Simplify right side
    35,523.20x = 1,053,732,318.72
  5. Step 5: Solve for x
    x = 1,053,732,318.72/35,523.20
  6. Step 6: Final answer
    x = 29,663.21

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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.