Home / 28,903.80-39,886.40-16,157

Finding the Fourth Proportional to 28,903.80, 39,886.40 and 16,157

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Solution

The fourth proportional to 28,903.80, 39,886.40 and 16,157 is: 22,296.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.80 : 39,886.40 = 16,157 : x
  2. Step 2: Convert to fraction form
    28,903.80/39,886.40 = 16,157/x
  3. Step 3: Cross multiply
    28,903.80x = 39,886.40 × 16,157
  4. Step 4: Simplify right side
    28,903.80x = 644,444,564.80
  5. Step 5: Solve for x
    x = 644,444,564.80/28,903.80
  6. Step 6: Final answer
    x = 22,296.19

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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.