Home / 28,222.50-38,946.24-15,475.44

Finding the Fourth Proportional to 28,222.50, 38,946.24 and 15,475.44

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Solution

The fourth proportional to 28,222.50, 38,946.24 and 15,475.44 is: 21,355.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.50 : 38,946.24 = 15,475.44 : x
  2. Step 2: Convert to fraction form
    28,222.50/38,946.24 = 15,475.44/x
  3. Step 3: Cross multiply
    28,222.50x = 38,946.24 × 15,475.44
  4. Step 4: Simplify right side
    28,222.50x = 602,710,200.35
  5. Step 5: Solve for x
    x = 602,710,200.35/28,222.50
  6. Step 6: Final answer
    x = 21,355.66

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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.