Home / 53,003.40-79,504.54-13,560.20

Finding the Fourth Proportional to 53,003.40, 79,504.54 and 13,560.20

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Solution

The fourth proportional to 53,003.40, 79,504.54 and 13,560.20 is: 20,340.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,003.40 : 79,504.54 = 13,560.20 : x
  2. Step 2: Convert to fraction form
    53,003.40/79,504.54 = 13,560.20/x
  3. Step 3: Cross multiply
    53,003.40x = 79,504.54 × 13,560.20
  4. Step 4: Simplify right side
    53,003.40x = 1,078,097,463.31
  5. Step 5: Solve for x
    x = 1,078,097,463.31/53,003.40
  6. Step 6: Final answer
    x = 20,340.16

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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.