Home / 39,970.11-59,937.72-21,245.64

Finding the Fourth Proportional to 39,970.11, 59,937.72 and 21,245.64

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Solution

The fourth proportional to 39,970.11, 59,937.72 and 21,245.64 is: 31,859.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,970.11 : 59,937.72 = 21,245.64 : x
  2. Step 2: Convert to fraction form
    39,970.11/59,937.72 = 21,245.64/x
  3. Step 3: Cross multiply
    39,970.11x = 59,937.72 × 21,245.64
  4. Step 4: Simplify right side
    39,970.11x = 1,273,415,373.76
  5. Step 5: Solve for x
    x = 1,273,415,373.76/39,970.11
  6. Step 6: Final answer
    x = 31,859.19

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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.