Home / 19,771.04-27,281.40-11,385.92

Finding the Fourth Proportional to 19,771.04, 27,281.40 and 11,385.92

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Solution

The fourth proportional to 19,771.04, 27,281.40 and 11,385.92 is: 15,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.04 : 27,281.40 = 11,385.92 : x
  2. Step 2: Convert to fraction form
    19,771.04/27,281.40 = 11,385.92/x
  3. Step 3: Cross multiply
    19,771.04x = 27,281.40 × 11,385.92
  4. Step 4: Simplify right side
    19,771.04x = 310,623,837.89
  5. Step 5: Solve for x
    x = 310,623,837.89/19,771.04
  6. Step 6: Final answer
    x = 15,711.05

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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.