Home / 28,333.50-39,100.23-15,757.98

Finding the Fourth Proportional to 28,333.50, 39,100.23 and 15,757.98

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Solution

The fourth proportional to 28,333.50, 39,100.23 and 15,757.98 is: 21,746.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,333.50 : 39,100.23 = 15,757.98 : x
  2. Step 2: Convert to fraction form
    28,333.50/39,100.23 = 15,757.98/x
  3. Step 3: Cross multiply
    28,333.50x = 39,100.23 × 15,757.98
  4. Step 4: Simplify right side
    28,333.50x = 616,140,642.34
  5. Step 5: Solve for x
    x = 616,140,642.34/28,333.50
  6. Step 6: Final answer
    x = 21,746.01

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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.