Home / 43,490.62-59,975.72-28,378.45

Finding the Fourth Proportional to 43,490.62, 59,975.72 and 28,378.45

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Solution

The fourth proportional to 43,490.62, 59,975.72 and 28,378.45 is: 39,135.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,490.62 : 59,975.72 = 28,378.45 : x
  2. Step 2: Convert to fraction form
    43,490.62/59,975.72 = 28,378.45/x
  3. Step 3: Cross multiply
    43,490.62x = 59,975.72 × 28,378.45
  4. Step 4: Simplify right side
    43,490.62x = 1,702,017,671.36
  5. Step 5: Solve for x
    x = 1,702,017,671.36/43,490.62
  6. Step 6: Final answer
    x = 39,135.29

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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.