Home / 28,494.63-39,322.42-15,748.70

Finding the Fourth Proportional to 28,494.63, 39,322.42 and 15,748.70

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Solution

The fourth proportional to 28,494.63, 39,322.42 and 15,748.70 is: 21,733.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,494.63 : 39,322.42 = 15,748.70 : x
  2. Step 2: Convert to fraction form
    28,494.63/39,322.42 = 15,748.70/x
  3. Step 3: Cross multiply
    28,494.63x = 39,322.42 × 15,748.70
  4. Step 4: Simplify right side
    28,494.63x = 619,277,054.79
  5. Step 5: Solve for x
    x = 619,277,054.79/28,494.63
  6. Step 6: Final answer
    x = 21,733.11

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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.