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Finding the Fourth Proportional to 25,980.81, 35,845.02 and 15,898.74

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Solution

The fourth proportional to 25,980.81, 35,845.02 and 15,898.74 is: 21,935.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,980.81 : 35,845.02 = 15,898.74 : x
  2. Step 2: Convert to fraction form
    25,980.81/35,845.02 = 15,898.74/x
  3. Step 3: Cross multiply
    25,980.81x = 35,845.02 × 15,898.74
  4. Step 4: Simplify right side
    25,980.81x = 569,890,653.27
  5. Step 5: Solve for x
    x = 569,890,653.27/25,980.81
  6. Step 6: Final answer
    x = 21,935.06

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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.