Home / 39,230.59-54,138.53-21,325.58

Finding the Fourth Proportional to 39,230.59, 54,138.53 and 21,325.58

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Solution

The fourth proportional to 39,230.59, 54,138.53 and 21,325.58 is: 29,429.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,230.59 : 54,138.53 = 21,325.58 : x
  2. Step 2: Convert to fraction form
    39,230.59/54,138.53 = 21,325.58/x
  3. Step 3: Cross multiply
    39,230.59x = 54,138.53 × 21,325.58
  4. Step 4: Simplify right side
    39,230.59x = 1,154,535,552.60
  5. Step 5: Solve for x
    x = 1,154,535,552.60/39,230.59
  6. Step 6: Final answer
    x = 29,429.47

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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.