Home / 28,925.62-43,338.89-15,787.21

Finding the Fourth Proportional to 28,925.62, 43,338.89 and 15,787.21

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Solution

The fourth proportional to 28,925.62, 43,338.89 and 15,787.21 is: 23,653.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,925.62 : 43,338.89 = 15,787.21 : x
  2. Step 2: Convert to fraction form
    28,925.62/43,338.89 = 15,787.21/x
  3. Step 3: Cross multiply
    28,925.62x = 43,338.89 × 15,787.21
  4. Step 4: Simplify right side
    28,925.62x = 684,199,980.37
  5. Step 5: Solve for x
    x = 684,199,980.37/28,925.62
  6. Step 6: Final answer
    x = 23,653.77

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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.