Home / 19,225.60-28,809.18-14,272

Finding the Fourth Proportional to 19,225.60, 28,809.18 and 14,272

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Solution

The fourth proportional to 19,225.60, 28,809.18 and 14,272 is: 21,386.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,225.60 : 28,809.18 = 14,272 : x
  2. Step 2: Convert to fraction form
    19,225.60/28,809.18 = 14,272/x
  3. Step 3: Cross multiply
    19,225.60x = 28,809.18 × 14,272
  4. Step 4: Simplify right side
    19,225.60x = 411,164,616.96
  5. Step 5: Solve for x
    x = 411,164,616.96/19,225.60
  6. Step 6: Final answer
    x = 21,386.31

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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.