Home / 35,356.86-53,021.40-13,158.09

Finding the Fourth Proportional to 35,356.86, 53,021.40 and 13,158.09

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Solution

The fourth proportional to 35,356.86, 53,021.40 and 13,158.09 is: 19,731.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,356.86 : 53,021.40 = 13,158.09 : x
  2. Step 2: Convert to fraction form
    35,356.86/53,021.40 = 13,158.09/x
  3. Step 3: Cross multiply
    35,356.86x = 53,021.40 × 13,158.09
  4. Step 4: Simplify right side
    35,356.86x = 697,660,353.13
  5. Step 5: Solve for x
    x = 697,660,353.13/35,356.86
  6. Step 6: Final answer
    x = 19,731.97

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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.