Home / 37,904-52,306.40-21,987.36

Finding the Fourth Proportional to 37,904, 52,306.40 and 21,987.36

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Solution

The fourth proportional to 37,904, 52,306.40 and 21,987.36 is: 30,341.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,904 : 52,306.40 = 21,987.36 : x
  2. Step 2: Convert to fraction form
    37,904/52,306.40 = 21,987.36/x
  3. Step 3: Cross multiply
    37,904x = 52,306.40 × 21,987.36
  4. Step 4: Simplify right side
    37,904x = 1,150,079,647.10
  5. Step 5: Solve for x
    x = 1,150,079,647.10/37,904
  6. Step 6: Final answer
    x = 30,341.91

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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.