Home / 28,827.39-39,782.01-16,081.40

Finding the Fourth Proportional to 28,827.39, 39,782.01 and 16,081.40

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Solution

The fourth proportional to 28,827.39, 39,782.01 and 16,081.40 is: 22,192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,827.39 : 39,782.01 = 16,081.40 : x
  2. Step 2: Convert to fraction form
    28,827.39/39,782.01 = 16,081.40/x
  3. Step 3: Cross multiply
    28,827.39x = 39,782.01 × 16,081.40
  4. Step 4: Simplify right side
    28,827.39x = 639,750,415.61
  5. Step 5: Solve for x
    x = 639,750,415.61/28,827.39
  6. Step 6: Final answer
    x = 22,192.45

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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.