Home / 28,461.53-42,694.35-10,931.36

Finding the Fourth Proportional to 28,461.53, 42,694.35 and 10,931.36

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Solution

The fourth proportional to 28,461.53, 42,694.35 and 10,931.36 is: 16,397.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,461.53 : 42,694.35 = 10,931.36 : x
  2. Step 2: Convert to fraction form
    28,461.53/42,694.35 = 10,931.36/x
  3. Step 3: Cross multiply
    28,461.53x = 42,694.35 × 10,931.36
  4. Step 4: Simplify right side
    28,461.53x = 466,707,041.69
  5. Step 5: Solve for x
    x = 466,707,041.69/28,461.53
  6. Step 6: Final answer
    x = 16,397.82

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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.