Home / 39,347.78-54,299.22-21,442.94

Finding the Fourth Proportional to 39,347.78, 54,299.22 and 21,442.94

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Solution

The fourth proportional to 39,347.78, 54,299.22 and 21,442.94 is: 29,590.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,347.78 : 54,299.22 = 21,442.94 : x
  2. Step 2: Convert to fraction form
    39,347.78/54,299.22 = 21,442.94/x
  3. Step 3: Cross multiply
    39,347.78x = 54,299.22 × 21,442.94
  4. Step 4: Simplify right side
    39,347.78x = 1,164,334,916.51
  5. Step 5: Solve for x
    x = 1,164,334,916.51/39,347.78
  6. Step 6: Final answer
    x = 29,590.87

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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.