Home / 42,900.56-64,371.32-15,211.60

Finding the Fourth Proportional to 42,900.56, 64,371.32 and 15,211.60

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Solution

The fourth proportional to 42,900.56, 64,371.32 and 15,211.60 is: 22,824.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,900.56 : 64,371.32 = 15,211.60 : x
  2. Step 2: Convert to fraction form
    42,900.56/64,371.32 = 15,211.60/x
  3. Step 3: Cross multiply
    42,900.56x = 64,371.32 × 15,211.60
  4. Step 4: Simplify right side
    42,900.56x = 979,190,771.31
  5. Step 5: Solve for x
    x = 979,190,771.31/42,900.56
  6. Step 6: Final answer
    x = 22,824.66

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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.