Home / 30,389.03-45,573.68-10,120.39

Finding the Fourth Proportional to 30,389.03, 45,573.68 and 10,120.39

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Solution

The fourth proportional to 30,389.03, 45,573.68 and 10,120.39 is: 15,177.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,389.03 : 45,573.68 = 10,120.39 : x
  2. Step 2: Convert to fraction form
    30,389.03/45,573.68 = 10,120.39/x
  3. Step 3: Cross multiply
    30,389.03x = 45,573.68 × 10,120.39
  4. Step 4: Simplify right side
    30,389.03x = 461,223,239.46
  5. Step 5: Solve for x
    x = 461,223,239.46/30,389.03
  6. Step 6: Final answer
    x = 15,177.30

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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.