Home / 28,153.26-42,192.96-15,666.84

Finding the Fourth Proportional to 28,153.26, 42,192.96 and 15,666.84

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Solution

The fourth proportional to 28,153.26, 42,192.96 and 15,666.84 is: 23,479.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,153.26 : 42,192.96 = 15,666.84 : x
  2. Step 2: Convert to fraction form
    28,153.26/42,192.96 = 15,666.84/x
  3. Step 3: Cross multiply
    28,153.26x = 42,192.96 × 15,666.84
  4. Step 4: Simplify right side
    28,153.26x = 661,030,353.45
  5. Step 5: Solve for x
    x = 661,030,353.45/28,153.26
  6. Step 6: Final answer
    x = 23,479.71

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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.