Home / 30,026.34-45,042.75-12,486.42

Finding the Fourth Proportional to 30,026.34, 45,042.75 and 12,486.42

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Solution

The fourth proportional to 30,026.34, 45,042.75 and 12,486.42 is: 18,730.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,026.34 : 45,042.75 = 12,486.42 : x
  2. Step 2: Convert to fraction form
    30,026.34/45,042.75 = 12,486.42/x
  3. Step 3: Cross multiply
    30,026.34x = 45,042.75 × 12,486.42
  4. Step 4: Simplify right side
    30,026.34x = 562,422,694.46
  5. Step 5: Solve for x
    x = 562,422,694.46/30,026.34
  6. Step 6: Final answer
    x = 18,730.98

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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.