Home / 28,503.54-42,714-19,609.74

Finding the Fourth Proportional to 28,503.54, 42,714 and 19,609.74

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Solution

The fourth proportional to 28,503.54, 42,714 and 19,609.74 is: 29,386.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,503.54 : 42,714 = 19,609.74 : x
  2. Step 2: Convert to fraction form
    28,503.54/42,714 = 19,609.74/x
  3. Step 3: Cross multiply
    28,503.54x = 42,714 × 19,609.74
  4. Step 4: Simplify right side
    28,503.54x = 837,610,434.36
  5. Step 5: Solve for x
    x = 837,610,434.36/28,503.54
  6. Step 6: Final answer
    x = 29,386.19

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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.