Home / 28,663.72-42,998.46-10,656.76

Finding the Fourth Proportional to 28,663.72, 42,998.46 and 10,656.76

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Solution

The fourth proportional to 28,663.72, 42,998.46 and 10,656.76 is: 15,986.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,663.72 : 42,998.46 = 10,656.76 : x
  2. Step 2: Convert to fraction form
    28,663.72/42,998.46 = 10,656.76/x
  3. Step 3: Cross multiply
    28,663.72x = 42,998.46 × 10,656.76
  4. Step 4: Simplify right side
    28,663.72x = 458,224,268.59
  5. Step 5: Solve for x
    x = 458,224,268.59/28,663.72
  6. Step 6: Final answer
    x = 15,986.21

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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.