Home / 20,838.84-28,727.72-14,860.14

Finding the Fourth Proportional to 20,838.84, 28,727.72 and 14,860.14

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Solution

The fourth proportional to 20,838.84, 28,727.72 and 14,860.14 is: 20,485.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838.84 : 28,727.72 = 14,860.14 : x
  2. Step 2: Convert to fraction form
    20,838.84/28,727.72 = 14,860.14/x
  3. Step 3: Cross multiply
    20,838.84x = 28,727.72 × 14,860.14
  4. Step 4: Simplify right side
    20,838.84x = 426,897,941.08
  5. Step 5: Solve for x
    x = 426,897,941.08/20,838.84
  6. Step 6: Final answer
    x = 20,485.69

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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.