Home / 30,001.14-45,021.60-12,470.94

Finding the Fourth Proportional to 30,001.14, 45,021.60 and 12,470.94

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Solution

The fourth proportional to 30,001.14, 45,021.60 and 12,470.94 is: 18,714.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,001.14 : 45,021.60 = 12,470.94 : x
  2. Step 2: Convert to fraction form
    30,001.14/45,021.60 = 12,470.94/x
  3. Step 3: Cross multiply
    30,001.14x = 45,021.60 × 12,470.94
  4. Step 4: Simplify right side
    30,001.14x = 561,461,672.30
  5. Step 5: Solve for x
    x = 561,461,672.30/30,001.14
  6. Step 6: Final answer
    x = 18,714.68

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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.