Home / 28,559.94-42,828.13-10,787.58

Finding the Fourth Proportional to 28,559.94, 42,828.13 and 10,787.58

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Solution

The fourth proportional to 28,559.94, 42,828.13 and 10,787.58 is: 16,176.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,559.94 : 42,828.13 = 10,787.58 : x
  2. Step 2: Convert to fraction form
    28,559.94/42,828.13 = 10,787.58/x
  3. Step 3: Cross multiply
    28,559.94x = 42,828.13 × 10,787.58
  4. Step 4: Simplify right side
    28,559.94x = 462,011,831.43
  5. Step 5: Solve for x
    x = 462,011,831.43/28,559.94
  6. Step 6: Final answer
    x = 16,176.92

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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.