Home / 24,430.40-36,645.60-7,790.30

Finding the Fourth Proportional to 24,430.40, 36,645.60 and 7,790.30

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Solution

The fourth proportional to 24,430.40, 36,645.60 and 7,790.30 is: 11,685.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,430.40 : 36,645.60 = 7,790.30 : x
  2. Step 2: Convert to fraction form
    24,430.40/36,645.60 = 7,790.30/x
  3. Step 3: Cross multiply
    24,430.40x = 36,645.60 × 7,790.30
  4. Step 4: Simplify right side
    24,430.40x = 285,480,217.68
  5. Step 5: Solve for x
    x = 285,480,217.68/24,430.40
  6. Step 6: Final answer
    x = 11,685.45

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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.