Home / 30,026.46-45,039.60-21,105.06

Finding the Fourth Proportional to 30,026.46, 45,039.60 and 21,105.06

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Solution

The fourth proportional to 30,026.46, 45,039.60 and 21,105.06 is: 31,657.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,026.46 : 45,039.60 = 21,105.06 : x
  2. Step 2: Convert to fraction form
    30,026.46/45,039.60 = 21,105.06/x
  3. Step 3: Cross multiply
    30,026.46x = 45,039.60 × 21,105.06
  4. Step 4: Simplify right side
    30,026.46x = 950,563,460.38
  5. Step 5: Solve for x
    x = 950,563,460.38/30,026.46
  6. Step 6: Final answer
    x = 31,657.53

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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.