Home / 28,476.87-42,718.72-11,848.15

Finding the Fourth Proportional to 28,476.87, 42,718.72 and 11,848.15

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Solution

The fourth proportional to 28,476.87, 42,718.72 and 11,848.15 is: 17,773.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,476.87 : 42,718.72 = 11,848.15 : x
  2. Step 2: Convert to fraction form
    28,476.87/42,718.72 = 11,848.15/x
  3. Step 3: Cross multiply
    28,476.87x = 42,718.72 × 11,848.15
  4. Step 4: Simplify right side
    28,476.87x = 506,137,802.37
  5. Step 5: Solve for x
    x = 506,137,802.37/28,476.87
  6. Step 6: Final answer
    x = 17,773.65

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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.