Home / 42,512.72-63,741.69-20,325.60

Finding the Fourth Proportional to 42,512.72, 63,741.69 and 20,325.60

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Solution

The fourth proportional to 42,512.72, 63,741.69 and 20,325.60 is: 30,475.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,512.72 : 63,741.69 = 20,325.60 : x
  2. Step 2: Convert to fraction form
    42,512.72/63,741.69 = 20,325.60/x
  3. Step 3: Cross multiply
    42,512.72x = 63,741.69 × 20,325.60
  4. Step 4: Simplify right side
    42,512.72x = 1,295,588,094.26
  5. Step 5: Solve for x
    x = 1,295,588,094.26/42,512.72
  6. Step 6: Final answer
    x = 30,475.31

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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.