Home / 30,006.30-45,009.45-13,374.30

Finding the Fourth Proportional to 30,006.30, 45,009.45 and 13,374.30

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Solution

The fourth proportional to 30,006.30, 45,009.45 and 13,374.30 is: 20,061.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,006.30 : 45,009.45 = 13,374.30 : x
  2. Step 2: Convert to fraction form
    30,006.30/45,009.45 = 13,374.30/x
  3. Step 3: Cross multiply
    30,006.30x = 45,009.45 × 13,374.30
  4. Step 4: Simplify right side
    30,006.30x = 601,969,887.14
  5. Step 5: Solve for x
    x = 601,969,887.14/30,006.30
  6. Step 6: Final answer
    x = 20,061.45

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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.