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Finding the Fourth Proportional to 30,476.47, 45,683.54 and 10,479.97

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Solution

The fourth proportional to 30,476.47, 45,683.54 and 10,479.97 is: 15,709.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,476.47 : 45,683.54 = 10,479.97 : x
  2. Step 2: Convert to fraction form
    30,476.47/45,683.54 = 10,479.97/x
  3. Step 3: Cross multiply
    30,476.47x = 45,683.54 × 10,479.97
  4. Step 4: Simplify right side
    30,476.47x = 478,762,128.69
  5. Step 5: Solve for x
    x = 478,762,128.69/30,476.47
  6. Step 6: Final answer
    x = 15,709.24

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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.