Home / 28,157.32-42,208.68-15,665.92

Finding the Fourth Proportional to 28,157.32, 42,208.68 and 15,665.92

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Solution

The fourth proportional to 28,157.32, 42,208.68 and 15,665.92 is: 23,483.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157.32 : 42,208.68 = 15,665.92 : x
  2. Step 2: Convert to fraction form
    28,157.32/42,208.68 = 15,665.92/x
  3. Step 3: Cross multiply
    28,157.32x = 42,208.68 × 15,665.92
  4. Step 4: Simplify right side
    28,157.32x = 661,237,804.19
  5. Step 5: Solve for x
    x = 661,237,804.19/28,157.32
  6. Step 6: Final answer
    x = 23,483.69

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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.