Home / 34,685.21-47,865.51-18,769.65

Finding the Fourth Proportional to 34,685.21, 47,865.51 and 18,769.65

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Solution

The fourth proportional to 34,685.21, 47,865.51 and 18,769.65 is: 25,902.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,685.21 : 47,865.51 = 18,769.65 : x
  2. Step 2: Convert to fraction form
    34,685.21/47,865.51 = 18,769.65/x
  3. Step 3: Cross multiply
    34,685.21x = 47,865.51 × 18,769.65
  4. Step 4: Simplify right side
    34,685.21x = 898,418,869.77
  5. Step 5: Solve for x
    x = 898,418,869.77/34,685.21
  6. Step 6: Final answer
    x = 25,902.07

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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.