Home / 30,211.32-45,344.66-15,430.62

Finding the Fourth Proportional to 30,211.32, 45,344.66 and 15,430.62

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Solution

The fourth proportional to 30,211.32, 45,344.66 and 15,430.62 is: 23,160.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.32 : 45,344.66 = 15,430.62 : x
  2. Step 2: Convert to fraction form
    30,211.32/45,344.66 = 15,430.62/x
  3. Step 3: Cross multiply
    30,211.32x = 45,344.66 × 15,430.62
  4. Step 4: Simplify right side
    30,211.32x = 699,696,140.34
  5. Step 5: Solve for x
    x = 699,696,140.34/30,211.32
  6. Step 6: Final answer
    x = 23,160.07

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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.