Home / 28,510.08-42,754.49-9,784.81

Finding the Fourth Proportional to 28,510.08, 42,754.49 and 9,784.81

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Solution

The fourth proportional to 28,510.08, 42,754.49 and 9,784.81 is: 14,673.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,510.08 : 42,754.49 = 9,784.81 : x
  2. Step 2: Convert to fraction form
    28,510.08/42,754.49 = 9,784.81/x
  3. Step 3: Cross multiply
    28,510.08x = 42,754.49 × 9,784.81
  4. Step 4: Simplify right side
    28,510.08x = 418,344,362.01
  5. Step 5: Solve for x
    x = 418,344,362.01/28,510.08
  6. Step 6: Final answer
    x = 14,673.56

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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.