Home / 36,215.60-54,323.40-9,920.30

Finding the Fourth Proportional to 36,215.60, 54,323.40 and 9,920.30

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Solution

The fourth proportional to 36,215.60, 54,323.40 and 9,920.30 is: 14,880.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,215.60 : 54,323.40 = 9,920.30 : x
  2. Step 2: Convert to fraction form
    36,215.60/54,323.40 = 9,920.30/x
  3. Step 3: Cross multiply
    36,215.60x = 54,323.40 × 9,920.30
  4. Step 4: Simplify right side
    36,215.60x = 538,904,425.02
  5. Step 5: Solve for x
    x = 538,904,425.02/36,215.60
  6. Step 6: Final answer
    x = 14,880.45

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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.