Home / 30,250.03-41,740.50-16,821.40

Finding the Fourth Proportional to 30,250.03, 41,740.50 and 16,821.40

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Solution

The fourth proportional to 30,250.03, 41,740.50 and 16,821.40 is: 23,211.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,250.03 : 41,740.50 = 16,821.40 : x
  2. Step 2: Convert to fraction form
    30,250.03/41,740.50 = 16,821.40/x
  3. Step 3: Cross multiply
    30,250.03x = 41,740.50 × 16,821.40
  4. Step 4: Simplify right side
    30,250.03x = 702,133,646.70
  5. Step 5: Solve for x
    x = 702,133,646.70/30,250.03
  6. Step 6: Final answer
    x = 23,211.01

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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.