Home / 28,977.26-39,988.06-16,055.30

Finding the Fourth Proportional to 28,977.26, 39,988.06 and 16,055.30

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Solution

The fourth proportional to 28,977.26, 39,988.06 and 16,055.30 is: 22,156.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.26 : 39,988.06 = 16,055.30 : x
  2. Step 2: Convert to fraction form
    28,977.26/39,988.06 = 16,055.30/x
  3. Step 3: Cross multiply
    28,977.26x = 39,988.06 × 16,055.30
  4. Step 4: Simplify right side
    28,977.26x = 642,020,359.55
  5. Step 5: Solve for x
    x = 642,020,359.55/28,977.26
  6. Step 6: Final answer
    x = 22,156.01

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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.