Home / 28,463.35-39,279.39-15,888.10

Finding the Fourth Proportional to 28,463.35, 39,279.39 and 15,888.10

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Solution

The fourth proportional to 28,463.35, 39,279.39 and 15,888.10 is: 21,925.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,463.35 : 39,279.39 = 15,888.10 : x
  2. Step 2: Convert to fraction form
    28,463.35/39,279.39 = 15,888.10/x
  3. Step 3: Cross multiply
    28,463.35x = 39,279.39 × 15,888.10
  4. Step 4: Simplify right side
    28,463.35x = 624,074,876.26
  5. Step 5: Solve for x
    x = 624,074,876.26/28,463.35
  6. Step 6: Final answer
    x = 21,925.56

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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.