Home / 38,322.78-52,884.90-21,555.78

Finding the Fourth Proportional to 38,322.78, 52,884.90 and 21,555.78

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Solution

The fourth proportional to 38,322.78, 52,884.90 and 21,555.78 is: 29,746.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,322.78 : 52,884.90 = 21,555.78 : x
  2. Step 2: Convert to fraction form
    38,322.78/52,884.90 = 21,555.78/x
  3. Step 3: Cross multiply
    38,322.78x = 52,884.90 × 21,555.78
  4. Step 4: Simplify right side
    38,322.78x = 1,139,975,269.72
  5. Step 5: Solve for x
    x = 1,139,975,269.72/38,322.78
  6. Step 6: Final answer
    x = 29,746.67

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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.