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Finding the Fourth Proportional to 39,343, 59,053.38 and 20,875

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Solution

The fourth proportional to 39,343, 59,053.38 and 20,875 is: 31,333.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,343 : 59,053.38 = 20,875 : x
  2. Step 2: Convert to fraction form
    39,343/59,053.38 = 20,875/x
  3. Step 3: Cross multiply
    39,343x = 59,053.38 × 20,875
  4. Step 4: Simplify right side
    39,343x = 1,232,739,307.50
  5. Step 5: Solve for x
    x = 1,232,739,307.50/39,343
  6. Step 6: Final answer
    x = 31,333.13

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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.