Home / 28,905.54-39,888.63-16,330.02

Finding the Fourth Proportional to 28,905.54, 39,888.63 and 16,330.02

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Solution

The fourth proportional to 28,905.54, 39,888.63 and 16,330.02 is: 22,534.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.54 : 39,888.63 = 16,330.02 : x
  2. Step 2: Convert to fraction form
    28,905.54/39,888.63 = 16,330.02/x
  3. Step 3: Cross multiply
    28,905.54x = 39,888.63 × 16,330.02
  4. Step 4: Simplify right side
    28,905.54x = 651,382,125.67
  5. Step 5: Solve for x
    x = 651,382,125.67/28,905.54
  6. Step 6: Final answer
    x = 22,534.85

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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.