Home / 28,827.40-39,781.70-16,080.58

Finding the Fourth Proportional to 28,827.40, 39,781.70 and 16,080.58

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Solution

The fourth proportional to 28,827.40, 39,781.70 and 16,080.58 is: 22,191.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,827.40 : 39,781.70 = 16,080.58 : x
  2. Step 2: Convert to fraction form
    28,827.40/39,781.70 = 16,080.58/x
  3. Step 3: Cross multiply
    28,827.40x = 39,781.70 × 16,080.58
  4. Step 4: Simplify right side
    28,827.40x = 639,712,809.39
  5. Step 5: Solve for x
    x = 639,712,809.39/28,827.40
  6. Step 6: Final answer
    x = 22,191.14

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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.