Home / 39,881.62-59,807.53-13,222.72

Finding the Fourth Proportional to 39,881.62, 59,807.53 and 13,222.72

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Solution

The fourth proportional to 39,881.62, 59,807.53 and 13,222.72 is: 19,829.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,881.62 : 59,807.53 = 13,222.72 : x
  2. Step 2: Convert to fraction form
    39,881.62/59,807.53 = 13,222.72/x
  3. Step 3: Cross multiply
    39,881.62x = 59,807.53 × 13,222.72
  4. Step 4: Simplify right side
    39,881.62x = 790,818,090.09
  5. Step 5: Solve for x
    x = 790,818,090.09/39,881.62
  6. Step 6: Final answer
    x = 19,829.14

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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.