Home / 28,820.34-39,729.15-23,153.04

Finding the Fourth Proportional to 28,820.34, 39,729.15 and 23,153.04

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Solution

The fourth proportional to 28,820.34, 39,729.15 and 23,153.04 is: 31,916.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.34 : 39,729.15 = 23,153.04 : x
  2. Step 2: Convert to fraction form
    28,820.34/39,729.15 = 23,153.04/x
  3. Step 3: Cross multiply
    28,820.34x = 39,729.15 × 23,153.04
  4. Step 4: Simplify right side
    28,820.34x = 919,850,599.12
  5. Step 5: Solve for x
    x = 919,850,599.12/28,820.34
  6. Step 6: Final answer
    x = 31,916.72

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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.