Home / 28,272.07-39,007.47-18,206.34

Finding the Fourth Proportional to 28,272.07, 39,007.47 and 18,206.34

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Solution

The fourth proportional to 28,272.07, 39,007.47 and 18,206.34 is: 25,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,272.07 : 39,007.47 = 18,206.34 : x
  2. Step 2: Convert to fraction form
    28,272.07/39,007.47 = 18,206.34/x
  3. Step 3: Cross multiply
    28,272.07x = 39,007.47 × 18,206.34
  4. Step 4: Simplify right side
    28,272.07x = 710,183,183.36
  5. Step 5: Solve for x
    x = 710,183,183.36/28,272.07
  6. Step 6: Final answer
    x = 25,119.60

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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.