Home / 20,629-28,487.46-14,358.52

Finding the Fourth Proportional to 20,629, 28,487.46 and 14,358.52

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Solution

The fourth proportional to 20,629, 28,487.46 and 14,358.52 is: 19,828.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629 : 28,487.46 = 14,358.52 : x
  2. Step 2: Convert to fraction form
    20,629/28,487.46 = 14,358.52/x
  3. Step 3: Cross multiply
    20,629x = 28,487.46 × 14,358.52
  4. Step 4: Simplify right side
    20,629x = 409,037,764.16
  5. Step 5: Solve for x
    x = 409,037,764.16/20,629
  6. Step 6: Final answer
    x = 19,828.29

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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.