Home / 38,561.34-57,801.78-18,812.76

Finding the Fourth Proportional to 38,561.34, 57,801.78 and 18,812.76

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Solution

The fourth proportional to 38,561.34, 57,801.78 and 18,812.76 is: 28,199.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,561.34 : 57,801.78 = 18,812.76 : x
  2. Step 2: Convert to fraction form
    38,561.34/57,801.78 = 18,812.76/x
  3. Step 3: Cross multiply
    38,561.34x = 57,801.78 × 18,812.76
  4. Step 4: Simplify right side
    38,561.34x = 1,087,411,014.71
  5. Step 5: Solve for x
    x = 1,087,411,014.71/38,561.34
  6. Step 6: Final answer
    x = 28,199.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.