Home / 30,289.60-45,430.62-8,104.24

Finding the Fourth Proportional to 30,289.60, 45,430.62 and 8,104.24

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Solution

The fourth proportional to 30,289.60, 45,430.62 and 8,104.24 is: 12,155.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,289.60 : 45,430.62 = 8,104.24 : x
  2. Step 2: Convert to fraction form
    30,289.60/45,430.62 = 8,104.24/x
  3. Step 3: Cross multiply
    30,289.60x = 45,430.62 × 8,104.24
  4. Step 4: Simplify right side
    30,289.60x = 368,180,647.83
  5. Step 5: Solve for x
    x = 368,180,647.83/30,289.60
  6. Step 6: Final answer
    x = 12,155.35

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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.