Home / 28,985.33-43,406.72-14,146.40

Finding the Fourth Proportional to 28,985.33, 43,406.72 and 14,146.40

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Solution

The fourth proportional to 28,985.33, 43,406.72 and 14,146.40 is: 21,184.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.33 : 43,406.72 = 14,146.40 : x
  2. Step 2: Convert to fraction form
    28,985.33/43,406.72 = 14,146.40/x
  3. Step 3: Cross multiply
    28,985.33x = 43,406.72 × 14,146.40
  4. Step 4: Simplify right side
    28,985.33x = 614,048,753.08
  5. Step 5: Solve for x
    x = 614,048,753.08/28,985.33
  6. Step 6: Final answer
    x = 21,184.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.