Home / 30,225.43-45,329.03-12,691.36

Finding the Fourth Proportional to 30,225.43, 45,329.03 and 12,691.36

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Solution

The fourth proportional to 30,225.43, 45,329.03 and 12,691.36 is: 19,033.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,225.43 : 45,329.03 = 12,691.36 : x
  2. Step 2: Convert to fraction form
    30,225.43/45,329.03 = 12,691.36/x
  3. Step 3: Cross multiply
    30,225.43x = 45,329.03 × 12,691.36
  4. Step 4: Simplify right side
    30,225.43x = 575,287,038.18
  5. Step 5: Solve for x
    x = 575,287,038.18/30,225.43
  6. Step 6: Final answer
    x = 19,033.21

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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.