Home / 39,433.16-59,156.94-13,135.40

Finding the Fourth Proportional to 39,433.16, 59,156.94 and 13,135.40

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Solution

The fourth proportional to 39,433.16, 59,156.94 and 13,135.40 is: 19,705.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,433.16 : 59,156.94 = 13,135.40 : x
  2. Step 2: Convert to fraction form
    39,433.16/59,156.94 = 13,135.40/x
  3. Step 3: Cross multiply
    39,433.16x = 59,156.94 × 13,135.40
  4. Step 4: Simplify right side
    39,433.16x = 777,050,069.68
  5. Step 5: Solve for x
    x = 777,050,069.68/39,433.16
  6. Step 6: Final answer
    x = 19,705.50

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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.