Home / 39,621.80-59,346.30-30,787.40

Finding the Fourth Proportional to 39,621.80, 59,346.30 and 30,787.40

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Solution

The fourth proportional to 39,621.80, 59,346.30 and 30,787.40 is: 46,113.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,621.80 : 59,346.30 = 30,787.40 : x
  2. Step 2: Convert to fraction form
    39,621.80/59,346.30 = 30,787.40/x
  3. Step 3: Cross multiply
    39,621.80x = 59,346.30 × 30,787.40
  4. Step 4: Simplify right side
    39,621.80x = 1,827,118,276.62
  5. Step 5: Solve for x
    x = 1,827,118,276.62/39,621.80
  6. Step 6: Final answer
    x = 46,113.96

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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.