Home / 42,015.08-62,991.25-18,318.12

Finding the Fourth Proportional to 42,015.08, 62,991.25 and 18,318.12

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Solution

The fourth proportional to 42,015.08, 62,991.25 and 18,318.12 is: 27,463.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,015.08 : 62,991.25 = 18,318.12 : x
  2. Step 2: Convert to fraction form
    42,015.08/62,991.25 = 18,318.12/x
  3. Step 3: Cross multiply
    42,015.08x = 62,991.25 × 18,318.12
  4. Step 4: Simplify right side
    42,015.08x = 1,153,881,276.45
  5. Step 5: Solve for x
    x = 1,153,881,276.45/42,015.08
  6. Step 6: Final answer
    x = 27,463.50

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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.