Home / 30,079.76-45,116.76-10,355.60

Finding the Fourth Proportional to 30,079.76, 45,116.76 and 10,355.60

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Solution

The fourth proportional to 30,079.76, 45,116.76 and 10,355.60 is: 15,532.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,079.76 : 45,116.76 = 10,355.60 : x
  2. Step 2: Convert to fraction form
    30,079.76/45,116.76 = 10,355.60/x
  3. Step 3: Cross multiply
    30,079.76x = 45,116.76 × 10,355.60
  4. Step 4: Simplify right side
    30,079.76x = 467,211,119.86
  5. Step 5: Solve for x
    x = 467,211,119.86/30,079.76
  6. Step 6: Final answer
    x = 15,532.41

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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.