Home / 28,460.46-39,274.68-15,714.57

Finding the Fourth Proportional to 28,460.46, 39,274.68 and 15,714.57

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Solution

The fourth proportional to 28,460.46, 39,274.68 and 15,714.57 is: 21,685.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,460.46 : 39,274.68 = 15,714.57 : x
  2. Step 2: Convert to fraction form
    28,460.46/39,274.68 = 15,714.57/x
  3. Step 3: Cross multiply
    28,460.46x = 39,274.68 × 15,714.57
  4. Step 4: Simplify right side
    28,460.46x = 617,184,708.09
  5. Step 5: Solve for x
    x = 617,184,708.09/28,460.46
  6. Step 6: Final answer
    x = 21,685.69

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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.