Home / 30,009.50-41,412.61-16,581.32

Finding the Fourth Proportional to 30,009.50, 41,412.61 and 16,581.32

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Solution

The fourth proportional to 30,009.50, 41,412.61 and 16,581.32 is: 22,881.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,009.50 : 41,412.61 = 16,581.32 : x
  2. Step 2: Convert to fraction form
    30,009.50/41,412.61 = 16,581.32/x
  3. Step 3: Cross multiply
    30,009.50x = 41,412.61 × 16,581.32
  4. Step 4: Simplify right side
    30,009.50x = 686,675,738.45
  5. Step 5: Solve for x
    x = 686,675,738.45/30,009.50
  6. Step 6: Final answer
    x = 22,881.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.