Home / 25,280.16-37,930-10,485.28

Finding the Fourth Proportional to 25,280.16, 37,930 and 10,485.28

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Solution

The fourth proportional to 25,280.16, 37,930 and 10,485.28 is: 15,731.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,280.16 : 37,930 = 10,485.28 : x
  2. Step 2: Convert to fraction form
    25,280.16/37,930 = 10,485.28/x
  3. Step 3: Cross multiply
    25,280.16x = 37,930 × 10,485.28
  4. Step 4: Simplify right side
    25,280.16x = 397,706,670.40
  5. Step 5: Solve for x
    x = 397,706,670.40/25,280.16
  6. Step 6: Final answer
    x = 15,731.97

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1.5x scale

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.