Home / 25,219.06-34,802.56-13,888.78

Finding the Fourth Proportional to 25,219.06, 34,802.56 and 13,888.78

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Solution

The fourth proportional to 25,219.06, 34,802.56 and 13,888.78 is: 19,166.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,219.06 : 34,802.56 = 13,888.78 : x
  2. Step 2: Convert to fraction form
    25,219.06/34,802.56 = 13,888.78/x
  3. Step 3: Cross multiply
    25,219.06x = 34,802.56 × 13,888.78
  4. Step 4: Simplify right side
    25,219.06x = 483,365,029.63
  5. Step 5: Solve for x
    x = 483,365,029.63/25,219.06
  6. Step 6: Final answer
    x = 19,166.66

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1.5x scale

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.