Home / 25,157.64-34,719.30-13,980.36

Finding the Fourth Proportional to 25,157.64, 34,719.30 and 13,980.36

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Solution

The fourth proportional to 25,157.64, 34,719.30 and 13,980.36 is: 19,293.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,157.64 : 34,719.30 = 13,980.36 : x
  2. Step 2: Convert to fraction form
    25,157.64/34,719.30 = 13,980.36/x
  3. Step 3: Cross multiply
    25,157.64x = 34,719.30 × 13,980.36
  4. Step 4: Simplify right side
    25,157.64x = 485,388,312.95
  5. Step 5: Solve for x
    x = 485,388,312.95/25,157.64
  6. Step 6: Final answer
    x = 19,293.87

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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.