Home / 25,220.64-34,804.19-13,889.90

Finding the Fourth Proportional to 25,220.64, 34,804.19 and 13,889.90

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Solution

The fourth proportional to 25,220.64, 34,804.19 and 13,889.90 is: 19,167.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,220.64 : 34,804.19 = 13,889.90 : x
  2. Step 2: Convert to fraction form
    25,220.64/34,804.19 = 13,889.90/x
  3. Step 3: Cross multiply
    25,220.64x = 34,804.19 × 13,889.90
  4. Step 4: Simplify right side
    25,220.64x = 483,426,718.68
  5. Step 5: Solve for x
    x = 483,426,718.68/25,220.64
  6. Step 6: Final answer
    x = 19,167.90

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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.