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Finding the Fourth Proportional to 30,309.42, 45,484.90 and 10,587.96

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Solution

The fourth proportional to 30,309.42, 45,484.90 and 10,587.96 is: 15,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,309.42 : 45,484.90 = 10,587.96 : x
  2. Step 2: Convert to fraction form
    30,309.42/45,484.90 = 10,587.96/x
  3. Step 3: Cross multiply
    30,309.42x = 45,484.90 × 10,587.96
  4. Step 4: Simplify right side
    30,309.42x = 481,592,301.80
  5. Step 5: Solve for x
    x = 481,592,301.80/30,309.42
  6. Step 6: Final answer
    x = 15,889.20

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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.