Home / 39,555.63-54,521.60-28,074.51

Finding the Fourth Proportional to 39,555.63, 54,521.60 and 28,074.51

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Solution

The fourth proportional to 39,555.63, 54,521.60 and 28,074.51 is: 38,696.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,555.63 : 54,521.60 = 28,074.51 : x
  2. Step 2: Convert to fraction form
    39,555.63/54,521.60 = 28,074.51/x
  3. Step 3: Cross multiply
    39,555.63x = 54,521.60 × 28,074.51
  4. Step 4: Simplify right side
    39,555.63x = 1,530,667,064.04
  5. Step 5: Solve for x
    x = 1,530,667,064.04/39,555.63
  6. Step 6: Final answer
    x = 38,696.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.