Home / 28,288.07-39,005.54-18,065.67

Finding the Fourth Proportional to 28,288.07, 39,005.54 and 18,065.67

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Solution

The fourth proportional to 28,288.07, 39,005.54 and 18,065.67 is: 24,910.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,288.07 : 39,005.54 = 18,065.67 : x
  2. Step 2: Convert to fraction form
    28,288.07/39,005.54 = 18,065.67/x
  3. Step 3: Cross multiply
    28,288.07x = 39,005.54 × 18,065.67
  4. Step 4: Simplify right side
    28,288.07x = 704,660,928.46
  5. Step 5: Solve for x
    x = 704,660,928.46/28,288.07
  6. Step 6: Final answer
    x = 24,910.18

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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.