Home / 28,232.37-38,960.40-15,485.29

Finding the Fourth Proportional to 28,232.37, 38,960.40 and 15,485.29

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Solution

The fourth proportional to 28,232.37, 38,960.40 and 15,485.29 is: 21,369.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232.37 : 38,960.40 = 15,485.29 : x
  2. Step 2: Convert to fraction form
    28,232.37/38,960.40 = 15,485.29/x
  3. Step 3: Cross multiply
    28,232.37x = 38,960.40 × 15,485.29
  4. Step 4: Simplify right side
    28,232.37x = 603,312,995.12
  5. Step 5: Solve for x
    x = 603,312,995.12/28,232.37
  6. Step 6: Final answer
    x = 21,369.55

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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.