Home / 34,689.78-47,872.04-18,774.22

Finding the Fourth Proportional to 34,689.78, 47,872.04 and 18,774.22

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Solution

The fourth proportional to 34,689.78, 47,872.04 and 18,774.22 is: 25,908.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,689.78 : 47,872.04 = 18,774.22 : x
  2. Step 2: Convert to fraction form
    34,689.78/47,872.04 = 18,774.22/x
  3. Step 3: Cross multiply
    34,689.78x = 47,872.04 × 18,774.22
  4. Step 4: Simplify right side
    34,689.78x = 898,760,210.81
  5. Step 5: Solve for x
    x = 898,760,210.81/34,689.78
  6. Step 6: Final answer
    x = 25,908.50

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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.