Home / 39,913.46-59,879.57-13,618.29

Finding the Fourth Proportional to 39,913.46, 59,879.57 and 13,618.29

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Solution

The fourth proportional to 39,913.46, 59,879.57 and 13,618.29 is: 20,430.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,913.46 : 59,879.57 = 13,618.29 : x
  2. Step 2: Convert to fraction form
    39,913.46/59,879.57 = 13,618.29/x
  3. Step 3: Cross multiply
    39,913.46x = 59,879.57 × 13,618.29
  4. Step 4: Simplify right side
    39,913.46x = 815,457,281.24
  5. Step 5: Solve for x
    x = 815,457,281.24/39,913.46
  6. Step 6: Final answer
    x = 20,430.64

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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.