Home / 30,292.10-45,447.45-15,511.40

Finding the Fourth Proportional to 30,292.10, 45,447.45 and 15,511.40

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Solution

The fourth proportional to 30,292.10, 45,447.45 and 15,511.40 is: 23,271.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,292.10 : 45,447.45 = 15,511.40 : x
  2. Step 2: Convert to fraction form
    30,292.10/45,447.45 = 15,511.40/x
  3. Step 3: Cross multiply
    30,292.10x = 45,447.45 × 15,511.40
  4. Step 4: Simplify right side
    30,292.10x = 704,953,348.69
  5. Step 5: Solve for x
    x = 704,953,348.69/30,292.10
  6. Step 6: Final answer
    x = 23,271.86

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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.