Home / 28,035.16-42,052.74-15,731.80

Finding the Fourth Proportional to 28,035.16, 42,052.74 and 15,731.80

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Solution

The fourth proportional to 28,035.16, 42,052.74 and 15,731.80 is: 23,597.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,035.16 : 42,052.74 = 15,731.80 : x
  2. Step 2: Convert to fraction form
    28,035.16/42,052.74 = 15,731.80/x
  3. Step 3: Cross multiply
    28,035.16x = 42,052.74 × 15,731.80
  4. Step 4: Simplify right side
    28,035.16x = 661,565,295.13
  5. Step 5: Solve for x
    x = 661,565,295.13/28,035.16
  6. Step 6: Final answer
    x = 23,597.70

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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.