Home / 31,297.48-43,176.80-18,714.94

Finding the Fourth Proportional to 31,297.48, 43,176.80 and 18,714.94

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Solution

The fourth proportional to 31,297.48, 43,176.80 and 18,714.94 is: 25,818.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,297.48 : 43,176.80 = 18,714.94 : x
  2. Step 2: Convert to fraction form
    31,297.48/43,176.80 = 18,714.94/x
  3. Step 3: Cross multiply
    31,297.48x = 43,176.80 × 18,714.94
  4. Step 4: Simplify right side
    31,297.48x = 808,051,160.24
  5. Step 5: Solve for x
    x = 808,051,160.24/31,297.48
  6. Step 6: Final answer
    x = 25,818.41

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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.