Home / 25,364.45-34,981.46-15,290.68

Finding the Fourth Proportional to 25,364.45, 34,981.46 and 15,290.68

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Solution

The fourth proportional to 25,364.45, 34,981.46 and 15,290.68 is: 21,088.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,364.45 : 34,981.46 = 15,290.68 : x
  2. Step 2: Convert to fraction form
    25,364.45/34,981.46 = 15,290.68/x
  3. Step 3: Cross multiply
    25,364.45x = 34,981.46 × 15,290.68
  4. Step 4: Simplify right side
    25,364.45x = 534,890,269.82
  5. Step 5: Solve for x
    x = 534,890,269.82/25,364.45
  6. Step 6: Final answer
    x = 21,088.19

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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.