Home / 28,827.02-39,781.52-16,079.78

Finding the Fourth Proportional to 28,827.02, 39,781.52 and 16,079.78

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Solution

The fourth proportional to 28,827.02, 39,781.52 and 16,079.78 is: 22,190.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,827.02 : 39,781.52 = 16,079.78 : x
  2. Step 2: Convert to fraction form
    28,827.02/39,781.52 = 16,079.78/x
  3. Step 3: Cross multiply
    28,827.02x = 39,781.52 × 16,079.78
  4. Step 4: Simplify right side
    28,827.02x = 639,677,810.36
  5. Step 5: Solve for x
    x = 639,677,810.36/28,827.02
  6. Step 6: Final answer
    x = 22,190.22

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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.