Home / 20,154.42-27,783.80-14,085.82

Finding the Fourth Proportional to 20,154.42, 27,783.80 and 14,085.82

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Solution

The fourth proportional to 20,154.42, 27,783.80 and 14,085.82 is: 19,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.42 : 27,783.80 = 14,085.82 : x
  2. Step 2: Convert to fraction form
    20,154.42/27,783.80 = 14,085.82/x
  3. Step 3: Cross multiply
    20,154.42x = 27,783.80 × 14,085.82
  4. Step 4: Simplify right side
    20,154.42x = 391,357,605.72
  5. Step 5: Solve for x
    x = 391,357,605.72/20,154.42
  6. Step 6: Final answer
    x = 19,417.95

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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.