Home / 39,749.20-59,623.80-12,047.20

Finding the Fourth Proportional to 39,749.20, 59,623.80 and 12,047.20

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Solution

The fourth proportional to 39,749.20, 59,623.80 and 12,047.20 is: 18,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,749.20 : 59,623.80 = 12,047.20 : x
  2. Step 2: Convert to fraction form
    39,749.20/59,623.80 = 12,047.20/x
  3. Step 3: Cross multiply
    39,749.20x = 59,623.80 × 12,047.20
  4. Step 4: Simplify right side
    39,749.20x = 718,299,843.36
  5. Step 5: Solve for x
    x = 718,299,843.36/39,749.20
  6. Step 6: Final answer
    x = 18,070.80

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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.