Home / 52,965.72-79,448.58-13,521.42

Finding the Fourth Proportional to 52,965.72, 79,448.58 and 13,521.42

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Solution

The fourth proportional to 52,965.72, 79,448.58 and 13,521.42 is: 20,282.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,965.72 : 79,448.58 = 13,521.42 : x
  2. Step 2: Convert to fraction form
    52,965.72/79,448.58 = 13,521.42/x
  3. Step 3: Cross multiply
    52,965.72x = 79,448.58 × 13,521.42
  4. Step 4: Simplify right side
    52,965.72x = 1,074,257,618.58
  5. Step 5: Solve for x
    x = 1,074,257,618.58/52,965.72
  6. Step 6: Final answer
    x = 20,282.13

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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.