Home / 30,389.49-45,570.09-9,324.12

Finding the Fourth Proportional to 30,389.49, 45,570.09 and 9,324.12

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Solution

The fourth proportional to 30,389.49, 45,570.09 and 9,324.12 is: 13,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,389.49 : 45,570.09 = 9,324.12 : x
  2. Step 2: Convert to fraction form
    30,389.49/45,570.09 = 9,324.12/x
  3. Step 3: Cross multiply
    30,389.49x = 45,570.09 × 9,324.12
  4. Step 4: Simplify right side
    30,389.49x = 424,900,987.57
  5. Step 5: Solve for x
    x = 424,900,987.57/30,389.49
  6. Step 6: Final answer
    x = 13,981.84

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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.