Home / 28,047.56-38,702.94-15,471.50

Finding the Fourth Proportional to 28,047.56, 38,702.94 and 15,471.50

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Solution

The fourth proportional to 28,047.56, 38,702.94 and 15,471.50 is: 21,349.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.56 : 38,702.94 = 15,471.50 : x
  2. Step 2: Convert to fraction form
    28,047.56/38,702.94 = 15,471.50/x
  3. Step 3: Cross multiply
    28,047.56x = 38,702.94 × 15,471.50
  4. Step 4: Simplify right side
    28,047.56x = 598,792,516.84
  5. Step 5: Solve for x
    x = 598,792,516.84/28,047.56
  6. Step 6: Final answer
    x = 21,349.18

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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.