Home / 34,243.58-47,286.25-21,518.89

Finding the Fourth Proportional to 34,243.58, 47,286.25 and 21,518.89

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Solution

The fourth proportional to 34,243.58, 47,286.25 and 21,518.89 is: 29,714.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,243.58 : 47,286.25 = 21,518.89 : x
  2. Step 2: Convert to fraction form
    34,243.58/47,286.25 = 21,518.89/x
  3. Step 3: Cross multiply
    34,243.58x = 47,286.25 × 21,518.89
  4. Step 4: Simplify right side
    34,243.58x = 1,017,547,440.25
  5. Step 5: Solve for x
    x = 1,017,547,440.25/34,243.58
  6. Step 6: Final answer
    x = 29,714.98

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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.