Home / 28,277.04-39,000.68-19,209.40

Finding the Fourth Proportional to 28,277.04, 39,000.68 and 19,209.40

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Solution

The fourth proportional to 28,277.04, 39,000.68 and 19,209.40 is: 26,494.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,277.04 : 39,000.68 = 19,209.40 : x
  2. Step 2: Convert to fraction form
    28,277.04/39,000.68 = 19,209.40/x
  3. Step 3: Cross multiply
    28,277.04x = 39,000.68 × 19,209.40
  4. Step 4: Simplify right side
    28,277.04x = 749,179,467.39
  5. Step 5: Solve for x
    x = 749,179,467.39/28,277.04
  6. Step 6: Final answer
    x = 26,494.27

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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.