Home / 18,985.59-28,483.25-5,838.08

Finding the Fourth Proportional to 18,985.59, 28,483.25 and 5,838.08

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Solution

The fourth proportional to 18,985.59, 28,483.25 and 5,838.08 is: 8,758.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.59 : 28,483.25 = 5,838.08 : x
  2. Step 2: Convert to fraction form
    18,985.59/28,483.25 = 5,838.08/x
  3. Step 3: Cross multiply
    18,985.59x = 28,483.25 × 5,838.08
  4. Step 4: Simplify right side
    18,985.59x = 166,287,320.55
  5. Step 5: Solve for x
    x = 166,287,320.55/18,985.59
  6. Step 6: Final answer
    x = 8,758.61

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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.