Home / 28,434.24-39,197.71-19,909.50

Finding the Fourth Proportional to 28,434.24, 39,197.71 and 19,909.50

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Solution

The fourth proportional to 28,434.24, 39,197.71 and 19,909.50 is: 27,446.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,434.24 : 39,197.71 = 19,909.50 : x
  2. Step 2: Convert to fraction form
    28,434.24/39,197.71 = 19,909.50/x
  3. Step 3: Cross multiply
    28,434.24x = 39,197.71 × 19,909.50
  4. Step 4: Simplify right side
    28,434.24x = 780,406,807.25
  5. Step 5: Solve for x
    x = 780,406,807.25/28,434.24
  6. Step 6: Final answer
    x = 27,446.02

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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.