Home / 34,689.68-47,871.84-18,774.30

Finding the Fourth Proportional to 34,689.68, 47,871.84 and 18,774.30

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Solution

The fourth proportional to 34,689.68, 47,871.84 and 18,774.30 is: 25,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,689.68 : 47,871.84 = 18,774.30 : x
  2. Step 2: Convert to fraction form
    34,689.68/47,871.84 = 18,774.30/x
  3. Step 3: Cross multiply
    34,689.68x = 47,871.84 × 18,774.30
  4. Step 4: Simplify right side
    34,689.68x = 898,760,285.71
  5. Step 5: Solve for x
    x = 898,760,285.71/34,689.68
  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.