Home / 30,386.70-45,560.26-12,612.46

Finding the Fourth Proportional to 30,386.70, 45,560.26 and 12,612.46

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Solution

The fourth proportional to 30,386.70, 45,560.26 and 12,612.46 is: 18,910.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,386.70 : 45,560.26 = 12,612.46 : x
  2. Step 2: Convert to fraction form
    30,386.70/45,560.26 = 12,612.46/x
  3. Step 3: Cross multiply
    30,386.70x = 45,560.26 × 12,612.46
  4. Step 4: Simplify right side
    30,386.70x = 574,626,956.84
  5. Step 5: Solve for x
    x = 574,626,956.84/30,386.70
  6. Step 6: Final answer
    x = 18,910.48

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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.