Home / 39,050.19-53,889.28-21,145.19

Finding the Fourth Proportional to 39,050.19, 53,889.28 and 21,145.19

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Solution

The fourth proportional to 39,050.19, 53,889.28 and 21,145.19 is: 29,180.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,050.19 : 53,889.28 = 21,145.19 : x
  2. Step 2: Convert to fraction form
    39,050.19/53,889.28 = 21,145.19/x
  3. Step 3: Cross multiply
    39,050.19x = 53,889.28 × 21,145.19
  4. Step 4: Simplify right side
    39,050.19x = 1,139,498,742.25
  5. Step 5: Solve for x
    x = 1,139,498,742.25/39,050.19
  6. Step 6: Final answer
    x = 29,180.36

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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.