Home / 38,319.87-52,896.13-28,787.40

Finding the Fourth Proportional to 38,319.87, 52,896.13 and 28,787.40

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Solution

The fourth proportional to 38,319.87, 52,896.13 and 28,787.40 is: 39,737.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,319.87 : 52,896.13 = 28,787.40 : x
  2. Step 2: Convert to fraction form
    38,319.87/52,896.13 = 28,787.40/x
  3. Step 3: Cross multiply
    38,319.87x = 52,896.13 × 28,787.40
  4. Step 4: Simplify right side
    38,319.87x = 1,522,742,107.68
  5. Step 5: Solve for x
    x = 1,522,742,107.68/38,319.87
  6. Step 6: Final answer
    x = 39,737.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.