Home / 35,939.36-53,875.68-18,370.40

Finding the Fourth Proportional to 35,939.36, 53,875.68 and 18,370.40

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Solution

The fourth proportional to 35,939.36, 53,875.68 and 18,370.40 is: 27,538.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,939.36 : 53,875.68 = 18,370.40 : x
  2. Step 2: Convert to fraction form
    35,939.36/53,875.68 = 18,370.40/x
  3. Step 3: Cross multiply
    35,939.36x = 53,875.68 × 18,370.40
  4. Step 4: Simplify right side
    35,939.36x = 989,717,791.87
  5. Step 5: Solve for x
    x = 989,717,791.87/35,939.36
  6. Step 6: Final answer
    x = 27,538.55

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1.5x scale

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.