Home / 30,005.57-45,036.62-15,225.09

Finding the Fourth Proportional to 30,005.57, 45,036.62 and 15,225.09

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Solution

The fourth proportional to 30,005.57, 45,036.62 and 15,225.09 is: 22,851.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.57 : 45,036.62 = 15,225.09 : x
  2. Step 2: Convert to fraction form
    30,005.57/45,036.62 = 15,225.09/x
  3. Step 3: Cross multiply
    30,005.57x = 45,036.62 × 15,225.09
  4. Step 4: Simplify right side
    30,005.57x = 685,686,516.67
  5. Step 5: Solve for x
    x = 685,686,516.67/30,005.57
  6. Step 6: Final answer
    x = 22,851.98

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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.