Home / 19,001.60-28,499.70-5,855.30

Finding the Fourth Proportional to 19,001.60, 28,499.70 and 5,855.30

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Solution

The fourth proportional to 19,001.60, 28,499.70 and 5,855.30 is: 8,782.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,001.60 : 28,499.70 = 5,855.30 : x
  2. Step 2: Convert to fraction form
    19,001.60/28,499.70 = 5,855.30/x
  3. Step 3: Cross multiply
    19,001.60x = 28,499.70 × 5,855.30
  4. Step 4: Simplify right side
    19,001.60x = 166,874,293.41
  5. Step 5: Solve for x
    x = 166,874,293.41/19,001.60
  6. Step 6: Final answer
    x = 8,782.12

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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.