Home / 53,012.12-79,516.35-13,569.57

Finding the Fourth Proportional to 53,012.12, 79,516.35 and 13,569.57

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Solution

The fourth proportional to 53,012.12, 79,516.35 and 13,569.57 is: 20,353.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,012.12 : 79,516.35 = 13,569.57 : x
  2. Step 2: Convert to fraction form
    53,012.12/79,516.35 = 13,569.57/x
  3. Step 3: Cross multiply
    53,012.12x = 79,516.35 × 13,569.57
  4. Step 4: Simplify right side
    53,012.12x = 1,079,002,677.47
  5. Step 5: Solve for x
    x = 1,079,002,677.47/53,012.12
  6. Step 6: Final answer
    x = 20,353.89

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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.