Home / 25,320.56-34,939.33-13,989.35

Finding the Fourth Proportional to 25,320.56, 34,939.33 and 13,989.35

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Solution

The fourth proportional to 25,320.56, 34,939.33 and 13,989.35 is: 19,303.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,320.56 : 34,939.33 = 13,989.35 : x
  2. Step 2: Convert to fraction form
    25,320.56/34,939.33 = 13,989.35/x
  3. Step 3: Cross multiply
    25,320.56x = 34,939.33 × 13,989.35
  4. Step 4: Simplify right side
    25,320.56x = 488,778,568.51
  5. Step 5: Solve for x
    x = 488,778,568.51/25,320.56
  6. Step 6: Final answer
    x = 19,303.63

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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.