Home / 30,105.07-45,132.93-11,374.45

Finding the Fourth Proportional to 30,105.07, 45,132.93 and 11,374.45

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Solution

The fourth proportional to 30,105.07, 45,132.93 and 11,374.45 is: 17,052.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,105.07 : 45,132.93 = 11,374.45 : x
  2. Step 2: Convert to fraction form
    30,105.07/45,132.93 = 11,374.45/x
  3. Step 3: Cross multiply
    30,105.07x = 45,132.93 × 11,374.45
  4. Step 4: Simplify right side
    30,105.07x = 513,362,142.81
  5. Step 5: Solve for x
    x = 513,362,142.81/30,105.07
  6. Step 6: Final answer
    x = 17,052.35

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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.