Home / 30,270.06-45,401.76-8,085.39

Finding the Fourth Proportional to 30,270.06, 45,401.76 and 8,085.39

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Solution

The fourth proportional to 30,270.06, 45,401.76 and 8,085.39 is: 12,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,270.06 : 45,401.76 = 8,085.39 : x
  2. Step 2: Convert to fraction form
    30,270.06/45,401.76 = 8,085.39/x
  3. Step 3: Cross multiply
    30,270.06x = 45,401.76 × 8,085.39
  4. Step 4: Simplify right side
    30,270.06x = 367,090,936.29
  5. Step 5: Solve for x
    x = 367,090,936.29/30,270.06
  6. Step 6: Final answer
    x = 12,127.20

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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.