Home / 39,879.40-59,819.10-30,548.20

Finding the Fourth Proportional to 39,879.40, 59,819.10 and 30,548.20

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Solution

The fourth proportional to 39,879.40, 59,819.10 and 30,548.20 is: 45,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,879.40 : 59,819.10 = 30,548.20 : x
  2. Step 2: Convert to fraction form
    39,879.40/59,819.10 = 30,548.20/x
  3. Step 3: Cross multiply
    39,879.40x = 59,819.10 × 30,548.20
  4. Step 4: Simplify right side
    39,879.40x = 1,827,365,830.62
  5. Step 5: Solve for x
    x = 1,827,365,830.62/39,879.40
  6. Step 6: Final answer
    x = 45,822.30

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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.