Home / 30,117.65-45,217.85-15,336.50

Finding the Fourth Proportional to 30,117.65, 45,217.85 and 15,336.50

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Solution

The fourth proportional to 30,117.65, 45,217.85 and 15,336.50 is: 23,025.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,117.65 : 45,217.85 = 15,336.50 : x
  2. Step 2: Convert to fraction form
    30,117.65/45,217.85 = 15,336.50/x
  3. Step 3: Cross multiply
    30,117.65x = 45,217.85 × 15,336.50
  4. Step 4: Simplify right side
    30,117.65x = 693,483,253.75
  5. Step 5: Solve for x
    x = 693,483,253.75/30,117.65
  6. Step 6: Final answer
    x = 23,025.81

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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.