Home / 39,865.45-59,812.70-18,528.02

Finding the Fourth Proportional to 39,865.45, 59,812.70 and 18,528.02

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Solution

The fourth proportional to 39,865.45, 59,812.70 and 18,528.02 is: 27,798.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,865.45 : 59,812.70 = 18,528.02 : x
  2. Step 2: Convert to fraction form
    39,865.45/59,812.70 = 18,528.02/x
  3. Step 3: Cross multiply
    39,865.45x = 59,812.70 × 18,528.02
  4. Step 4: Simplify right side
    39,865.45x = 1,108,210,901.85
  5. Step 5: Solve for x
    x = 1,108,210,901.85/39,865.45
  6. Step 6: Final answer
    x = 27,798.78

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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.