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Finding the Fourth Proportional to 30,130.46, 45,196.06 and 7,944.02

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Solution

The fourth proportional to 30,130.46, 45,196.06 and 7,944.02 is: 11,916.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,130.46 : 45,196.06 = 7,944.02 : x
  2. Step 2: Convert to fraction form
    30,130.46/45,196.06 = 7,944.02/x
  3. Step 3: Cross multiply
    30,130.46x = 45,196.06 × 7,944.02
  4. Step 4: Simplify right side
    30,130.46x = 359,038,404.56
  5. Step 5: Solve for x
    x = 359,038,404.56/30,130.46
  6. Step 6: Final answer
    x = 11,916.13

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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.