Home / 25,311.18-34,929.50-13,980.45

Finding the Fourth Proportional to 25,311.18, 34,929.50 and 13,980.45

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Solution

The fourth proportional to 25,311.18, 34,929.50 and 13,980.45 is: 19,293.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,311.18 : 34,929.50 = 13,980.45 : x
  2. Step 2: Convert to fraction form
    25,311.18/34,929.50 = 13,980.45/x
  3. Step 3: Cross multiply
    25,311.18x = 34,929.50 × 13,980.45
  4. Step 4: Simplify right side
    25,311.18x = 488,330,058.37
  5. Step 5: Solve for x
    x = 488,330,058.37/25,311.18
  6. Step 6: Final answer
    x = 19,293.06

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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.