Home / 20,832.35-28,718.75-14,853.65

Finding the Fourth Proportional to 20,832.35, 28,718.75 and 14,853.65

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Solution

The fourth proportional to 20,832.35, 28,718.75 and 14,853.65 is: 20,476.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832.35 : 28,718.75 = 14,853.65 : x
  2. Step 2: Convert to fraction form
    20,832.35/28,718.75 = 14,853.65/x
  3. Step 3: Cross multiply
    20,832.35x = 28,718.75 × 14,853.65
  4. Step 4: Simplify right side
    20,832.35x = 426,578,154.48
  5. Step 5: Solve for x
    x = 426,578,154.48/20,832.35
  6. Step 6: Final answer
    x = 20,476.72

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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.