Home / 35,709.66-53,557.20-13,515.39

Finding the Fourth Proportional to 35,709.66, 53,557.20 and 13,515.39

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Solution

The fourth proportional to 35,709.66, 53,557.20 and 13,515.39 is: 20,270.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,709.66 : 53,557.20 = 13,515.39 : x
  2. Step 2: Convert to fraction form
    35,709.66/53,557.20 = 13,515.39/x
  3. Step 3: Cross multiply
    35,709.66x = 53,557.20 × 13,515.39
  4. Step 4: Simplify right side
    35,709.66x = 723,846,445.31
  5. Step 5: Solve for x
    x = 723,846,445.31/35,709.66
  6. Step 6: Final answer
    x = 20,270.33

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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.