Home / 30,359.20-45,540.15-10,368.40

Finding the Fourth Proportional to 30,359.20, 45,540.15 and 10,368.40

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Solution

The fourth proportional to 30,359.20, 45,540.15 and 10,368.40 is: 15,553.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,359.20 : 45,540.15 = 10,368.40 : x
  2. Step 2: Convert to fraction form
    30,359.20/45,540.15 = 10,368.40/x
  3. Step 3: Cross multiply
    30,359.20x = 45,540.15 × 10,368.40
  4. Step 4: Simplify right side
    30,359.20x = 472,178,491.26
  5. Step 5: Solve for x
    x = 472,178,491.26/30,359.20
  6. Step 6: Final answer
    x = 15,553.06

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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.