Home / 20,656.08-30,985.74-5,866.38

Finding the Fourth Proportional to 20,656.08, 30,985.74 and 5,866.38

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Solution

The fourth proportional to 20,656.08, 30,985.74 and 5,866.38 is: 8,800.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656.08 : 30,985.74 = 5,866.38 : x
  2. Step 2: Convert to fraction form
    20,656.08/30,985.74 = 5,866.38/x
  3. Step 3: Cross multiply
    20,656.08x = 30,985.74 × 5,866.38
  4. Step 4: Simplify right side
    20,656.08x = 181,774,125.42
  5. Step 5: Solve for x
    x = 181,774,125.42/20,656.08
  6. Step 6: Final answer
    x = 8,800.03

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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.