Home / 25,212.24-34,792.40-15,786

Finding the Fourth Proportional to 25,212.24, 34,792.40 and 15,786

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Solution

The fourth proportional to 25,212.24, 34,792.40 and 15,786 is: 21,784.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,212.24 : 34,792.40 = 15,786 : x
  2. Step 2: Convert to fraction form
    25,212.24/34,792.40 = 15,786/x
  3. Step 3: Cross multiply
    25,212.24x = 34,792.40 × 15,786
  4. Step 4: Simplify right side
    25,212.24x = 549,232,826.40
  5. Step 5: Solve for x
    x = 549,232,826.40/25,212.24
  6. Step 6: Final answer
    x = 21,784.37

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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.