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Finding the Fourth Proportional to 38,130.40, 57,199.40 and 15,950.72

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Solution

The fourth proportional to 38,130.40, 57,199.40 and 15,950.72 is: 23,927.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,130.40 : 57,199.40 = 15,950.72 : x
  2. Step 2: Convert to fraction form
    38,130.40/57,199.40 = 15,950.72/x
  3. Step 3: Cross multiply
    38,130.40x = 57,199.40 × 15,950.72
  4. Step 4: Simplify right side
    38,130.40x = 912,371,613.57
  5. Step 5: Solve for x
    x = 912,371,613.57/38,130.40
  6. Step 6: Final answer
    x = 23,927.67

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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.