Home / 25,271.28-37,890.72-10,490.40

Finding the Fourth Proportional to 25,271.28, 37,890.72 and 10,490.40

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Solution

The fourth proportional to 25,271.28, 37,890.72 and 10,490.40 is: 15,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,271.28 : 37,890.72 = 10,490.40 : x
  2. Step 2: Convert to fraction form
    25,271.28/37,890.72 = 10,490.40/x
  3. Step 3: Cross multiply
    25,271.28x = 37,890.72 × 10,490.40
  4. Step 4: Simplify right side
    25,271.28x = 397,488,809.09
  5. Step 5: Solve for x
    x = 397,488,809.09/25,271.28
  6. Step 6: Final answer
    x = 15,728.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.