Home / 30,200.89-45,267.15-15,378.50

Finding the Fourth Proportional to 30,200.89, 45,267.15 and 15,378.50

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Solution

The fourth proportional to 30,200.89, 45,267.15 and 15,378.50 is: 23,050.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,200.89 : 45,267.15 = 15,378.50 : x
  2. Step 2: Convert to fraction form
    30,200.89/45,267.15 = 15,378.50/x
  3. Step 3: Cross multiply
    30,200.89x = 45,267.15 × 15,378.50
  4. Step 4: Simplify right side
    30,200.89x = 696,140,782.48
  5. Step 5: Solve for x
    x = 696,140,782.48/30,200.89
  6. Step 6: Final answer
    x = 23,050.34

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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.