Home / 28,890.27-39,867.80-16,142.63

Finding the Fourth Proportional to 28,890.27, 39,867.80 and 16,142.63

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Solution

The fourth proportional to 28,890.27, 39,867.80 and 16,142.63 is: 22,276.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,890.27 : 39,867.80 = 16,142.63 : x
  2. Step 2: Convert to fraction form
    28,890.27/39,867.80 = 16,142.63/x
  3. Step 3: Cross multiply
    28,890.27x = 39,867.80 × 16,142.63
  4. Step 4: Simplify right side
    28,890.27x = 643,570,864.26
  5. Step 5: Solve for x
    x = 643,570,864.26/28,890.27
  6. Step 6: Final answer
    x = 22,276.39

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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.