Home / 30,553.13-45,829.70-12,085.13

Finding the Fourth Proportional to 30,553.13, 45,829.70 and 12,085.13

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Solution

The fourth proportional to 30,553.13, 45,829.70 and 12,085.13 is: 18,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,553.13 : 45,829.70 = 12,085.13 : x
  2. Step 2: Convert to fraction form
    30,553.13/45,829.70 = 12,085.13/x
  3. Step 3: Cross multiply
    30,553.13x = 45,829.70 × 12,085.13
  4. Step 4: Simplify right side
    30,553.13x = 553,857,882.36
  5. Step 5: Solve for x
    x = 553,857,882.36/30,553.13
  6. Step 6: Final answer
    x = 18,127.70

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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.