Home / 38,013.87-52,458.21-21,017.67

Finding the Fourth Proportional to 38,013.87, 52,458.21 and 21,017.67

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Solution

The fourth proportional to 38,013.87, 52,458.21 and 21,017.67 is: 29,003.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,013.87 : 52,458.21 = 21,017.67 : x
  2. Step 2: Convert to fraction form
    38,013.87/52,458.21 = 21,017.67/x
  3. Step 3: Cross multiply
    38,013.87x = 52,458.21 × 21,017.67
  4. Step 4: Simplify right side
    38,013.87x = 1,102,549,346.57
  5. Step 5: Solve for x
    x = 1,102,549,346.57/38,013.87
  6. Step 6: Final answer
    x = 29,003.87

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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.