Home / 28,904.68-43,370.14-28,438.76

Finding the Fourth Proportional to 28,904.68, 43,370.14 and 28,438.76

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Solution

The fourth proportional to 28,904.68, 43,370.14 and 28,438.76 is: 42,671.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,904.68 : 43,370.14 = 28,438.76 : x
  2. Step 2: Convert to fraction form
    28,904.68/43,370.14 = 28,438.76/x
  3. Step 3: Cross multiply
    28,904.68x = 43,370.14 × 28,438.76
  4. Step 4: Simplify right side
    28,904.68x = 1,233,393,002.63
  5. Step 5: Solve for x
    x = 1,233,393,002.63/28,904.68
  6. Step 6: Final answer
    x = 42,671.05

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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.