Home / 28,446.40-39,247.57-18,365.65

Finding the Fourth Proportional to 28,446.40, 39,247.57 and 18,365.65

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Solution

The fourth proportional to 28,446.40, 39,247.57 and 18,365.65 is: 25,339.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,446.40 : 39,247.57 = 18,365.65 : x
  2. Step 2: Convert to fraction form
    28,446.40/39,247.57 = 18,365.65/x
  3. Step 3: Cross multiply
    28,446.40x = 39,247.57 × 18,365.65
  4. Step 4: Simplify right side
    28,446.40x = 720,807,058.81
  5. Step 5: Solve for x
    x = 720,807,058.81/28,446.40
  6. Step 6: Final answer
    x = 25,339.13

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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.