Home / 28,492.32-39,319.44-15,917.16

Finding the Fourth Proportional to 28,492.32, 39,319.44 and 15,917.16

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Solution

The fourth proportional to 28,492.32, 39,319.44 and 15,917.16 is: 21,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,492.32 : 39,319.44 = 15,917.16 : x
  2. Step 2: Convert to fraction form
    28,492.32/39,319.44 = 15,917.16/x
  3. Step 3: Cross multiply
    28,492.32x = 39,319.44 × 15,917.16
  4. Step 4: Simplify right side
    28,492.32x = 625,853,817.59
  5. Step 5: Solve for x
    x = 625,853,817.59/28,492.32
  6. Step 6: Final answer
    x = 21,965.70

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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.