Home / 53,003.12-79,507.40-13,560.57

Finding the Fourth Proportional to 53,003.12, 79,507.40 and 13,560.57

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Solution

The fourth proportional to 53,003.12, 79,507.40 and 13,560.57 is: 20,341.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,003.12 : 79,507.40 = 13,560.57 : x
  2. Step 2: Convert to fraction form
    53,003.12/79,507.40 = 13,560.57/x
  3. Step 3: Cross multiply
    53,003.12x = 79,507.40 × 13,560.57
  4. Step 4: Simplify right side
    53,003.12x = 1,078,165,595.42
  5. Step 5: Solve for x
    x = 1,078,165,595.42/53,003.12
  6. Step 6: Final answer
    x = 20,341.55

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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.