Home / 35,818.40-53,727.60-18,103.70

Finding the Fourth Proportional to 35,818.40, 53,727.60 and 18,103.70

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Solution

The fourth proportional to 35,818.40, 53,727.60 and 18,103.70 is: 27,155.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,818.40 : 53,727.60 = 18,103.70 : x
  2. Step 2: Convert to fraction form
    35,818.40/53,727.60 = 18,103.70/x
  3. Step 3: Cross multiply
    35,818.40x = 53,727.60 × 18,103.70
  4. Step 4: Simplify right side
    35,818.40x = 972,668,352.12
  5. Step 5: Solve for x
    x = 972,668,352.12/35,818.40
  6. Step 6: Final answer
    x = 27,155.55

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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.