Home / 34,689.89-47,872.04-18,774.34

Finding the Fourth Proportional to 34,689.89, 47,872.04 and 18,774.34

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Solution

The fourth proportional to 34,689.89, 47,872.04 and 18,774.34 is: 25,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,689.89 : 47,872.04 = 18,774.34 : x
  2. Step 2: Convert to fraction form
    34,689.89/47,872.04 = 18,774.34/x
  3. Step 3: Cross multiply
    34,689.89x = 47,872.04 × 18,774.34
  4. Step 4: Simplify right side
    34,689.89x = 898,765,955.45
  5. Step 5: Solve for x
    x = 898,765,955.45/34,689.89
  6. Step 6: Final answer
    x = 25,908.58

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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.