Home / 28,252.75-38,988.76-15,506.01

Finding the Fourth Proportional to 28,252.75, 38,988.76 and 15,506.01

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Solution

The fourth proportional to 28,252.75, 38,988.76 and 15,506.01 is: 21,398.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,252.75 : 38,988.76 = 15,506.01 : x
  2. Step 2: Convert to fraction form
    28,252.75/38,988.76 = 15,506.01/x
  3. Step 3: Cross multiply
    28,252.75x = 38,988.76 × 15,506.01
  4. Step 4: Simplify right side
    28,252.75x = 604,560,102.45
  5. Step 5: Solve for x
    x = 604,560,102.45/28,252.75
  6. Step 6: Final answer
    x = 21,398.27

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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.