Home / 28,006.03-38,656.47-18,316.86

Finding the Fourth Proportional to 28,006.03, 38,656.47 and 18,316.86

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Solution

The fourth proportional to 28,006.03, 38,656.47 and 18,316.86 is: 25,282.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006.03 : 38,656.47 = 18,316.86 : x
  2. Step 2: Convert to fraction form
    28,006.03/38,656.47 = 18,316.86/x
  3. Step 3: Cross multiply
    28,006.03x = 38,656.47 × 18,316.86
  4. Step 4: Simplify right side
    28,006.03x = 708,065,149.08
  5. Step 5: Solve for x
    x = 708,065,149.08/28,006.03
  6. Step 6: Final answer
    x = 25,282.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.