Home / 30,025.28-45,013.60-12,508.22

Finding the Fourth Proportional to 30,025.28, 45,013.60 and 12,508.22

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Solution

The fourth proportional to 30,025.28, 45,013.60 and 12,508.22 is: 18,752.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,025.28 : 45,013.60 = 12,508.22 : x
  2. Step 2: Convert to fraction form
    30,025.28/45,013.60 = 12,508.22/x
  3. Step 3: Cross multiply
    30,025.28x = 45,013.60 × 12,508.22
  4. Step 4: Simplify right side
    30,025.28x = 563,040,011.79
  5. Step 5: Solve for x
    x = 563,040,011.79/30,025.28
  6. Step 6: Final answer
    x = 18,752.20

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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.