Home / 38,942.62-53,740.74-21,037.57

Finding the Fourth Proportional to 38,942.62, 53,740.74 and 21,037.57

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Solution

The fourth proportional to 38,942.62, 53,740.74 and 21,037.57 is: 29,031.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,942.62 : 53,740.74 = 21,037.57 : x
  2. Step 2: Convert to fraction form
    38,942.62/53,740.74 = 21,037.57/x
  3. Step 3: Cross multiply
    38,942.62x = 53,740.74 × 21,037.57
  4. Step 4: Simplify right side
    38,942.62x = 1,130,574,579.60
  5. Step 5: Solve for x
    x = 1,130,574,579.60/38,942.62
  6. Step 6: Final answer
    x = 29,031.81

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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.