Home / 30,003.40-45,053.70-16,881.40

Finding the Fourth Proportional to 30,003.40, 45,053.70 and 16,881.40

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Solution

The fourth proportional to 30,003.40, 45,053.70 and 16,881.40 is: 25,349.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,003.40 : 45,053.70 = 16,881.40 : x
  2. Step 2: Convert to fraction form
    30,003.40/45,053.70 = 16,881.40/x
  3. Step 3: Cross multiply
    30,003.40x = 45,053.70 × 16,881.40
  4. Step 4: Simplify right side
    30,003.40x = 760,569,531.18
  5. Step 5: Solve for x
    x = 760,569,531.18/30,003.40
  6. Step 6: Final answer
    x = 25,349.44

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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.