Home / 28,621.13-42,935.61-9,896.14

Finding the Fourth Proportional to 28,621.13, 42,935.61 and 9,896.14

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Solution

The fourth proportional to 28,621.13, 42,935.61 and 9,896.14 is: 14,845.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,621.13 : 42,935.61 = 9,896.14 : x
  2. Step 2: Convert to fraction form
    28,621.13/42,935.61 = 9,896.14/x
  3. Step 3: Cross multiply
    28,621.13x = 42,935.61 × 9,896.14
  4. Step 4: Simplify right side
    28,621.13x = 424,896,867.04
  5. Step 5: Solve for x
    x = 424,896,867.04/28,621.13
  6. Step 6: Final answer
    x = 14,845.56

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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.