Home / 31,714.07-43,783.35-21,657.11

Finding the Fourth Proportional to 31,714.07, 43,783.35 and 21,657.11

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Solution

The fourth proportional to 31,714.07, 43,783.35 and 21,657.11 is: 29,899.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,714.07 : 43,783.35 = 21,657.11 : x
  2. Step 2: Convert to fraction form
    31,714.07/43,783.35 = 21,657.11/x
  3. Step 3: Cross multiply
    31,714.07x = 43,783.35 × 21,657.11
  4. Step 4: Simplify right side
    31,714.07x = 948,220,827.12
  5. Step 5: Solve for x
    x = 948,220,827.12/31,714.07
  6. Step 6: Final answer
    x = 29,899.06

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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.