Home / 42,493.36-63,739.48-19,103.28

Finding the Fourth Proportional to 42,493.36, 63,739.48 and 19,103.28

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Solution

The fourth proportional to 42,493.36, 63,739.48 and 19,103.28 is: 28,654.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,493.36 : 63,739.48 = 19,103.28 : x
  2. Step 2: Convert to fraction form
    42,493.36/63,739.48 = 19,103.28/x
  3. Step 3: Cross multiply
    42,493.36x = 63,739.48 × 19,103.28
  4. Step 4: Simplify right side
    42,493.36x = 1,217,633,133.49
  5. Step 5: Solve for x
    x = 1,217,633,133.49/42,493.36
  6. Step 6: Final answer
    x = 28,654.67

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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.