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Finding the Fourth Proportional to 39,352.70, 54,307.87 and 21,448.87

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Solution

The fourth proportional to 39,352.70, 54,307.87 and 21,448.87 is: 29,600.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,352.70 : 54,307.87 = 21,448.87 : x
  2. Step 2: Convert to fraction form
    39,352.70/54,307.87 = 21,448.87/x
  3. Step 3: Cross multiply
    39,352.70x = 54,307.87 × 21,448.87
  4. Step 4: Simplify right side
    39,352.70x = 1,164,842,254.22
  5. Step 5: Solve for x
    x = 1,164,842,254.22/39,352.70
  6. Step 6: Final answer
    x = 29,600.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.