Home / 28,435.24-42,624.31-15,960.84

Finding the Fourth Proportional to 28,435.24, 42,624.31 and 15,960.84

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Solution

The fourth proportional to 28,435.24, 42,624.31 and 15,960.84 is: 23,925.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,435.24 : 42,624.31 = 15,960.84 : x
  2. Step 2: Convert to fraction form
    28,435.24/42,624.31 = 15,960.84/x
  3. Step 3: Cross multiply
    28,435.24x = 42,624.31 × 15,960.84
  4. Step 4: Simplify right side
    28,435.24x = 680,319,792.02
  5. Step 5: Solve for x
    x = 680,319,792.02/28,435.24
  6. Step 6: Final answer
    x = 23,925.23

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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.