Home / 19,605.02-27,036.48-15,121.67

Finding the Fourth Proportional to 19,605.02, 27,036.48 and 15,121.67

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Solution

The fourth proportional to 19,605.02, 27,036.48 and 15,121.67 is: 20,853.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.02 : 27,036.48 = 15,121.67 : x
  2. Step 2: Convert to fraction form
    19,605.02/27,036.48 = 15,121.67/x
  3. Step 3: Cross multiply
    19,605.02x = 27,036.48 × 15,121.67
  4. Step 4: Simplify right side
    19,605.02x = 408,836,728.52
  5. Step 5: Solve for x
    x = 408,836,728.52/19,605.02
  6. Step 6: Final answer
    x = 20,853.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.