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Finding the Fourth Proportional to 30,407.40, 45,596.52 and 15,608.70

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Solution

The fourth proportional to 30,407.40, 45,596.52 and 15,608.70 is: 23,405.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,407.40 : 45,596.52 = 15,608.70 : x
  2. Step 2: Convert to fraction form
    30,407.40/45,596.52 = 15,608.70/x
  3. Step 3: Cross multiply
    30,407.40x = 45,596.52 × 15,608.70
  4. Step 4: Simplify right side
    30,407.40x = 711,702,401.72
  5. Step 5: Solve for x
    x = 711,702,401.72/30,407.40
  6. Step 6: Final answer
    x = 23,405.57

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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.