Home / 30,009.42-45,042.36-15,228.95

Finding the Fourth Proportional to 30,009.42, 45,042.36 and 15,228.95

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Solution

The fourth proportional to 30,009.42, 45,042.36 and 15,228.95 is: 22,857.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,009.42 : 45,042.36 = 15,228.95 : x
  2. Step 2: Convert to fraction form
    30,009.42/45,042.36 = 15,228.95/x
  3. Step 3: Cross multiply
    30,009.42x = 45,042.36 × 15,228.95
  4. Step 4: Simplify right side
    30,009.42x = 685,947,623.11
  5. Step 5: Solve for x
    x = 685,947,623.11/30,009.42
  6. Step 6: Final answer
    x = 22,857.74

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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.