Home / 29,455.20-44,128.80-13,838.40

Finding the Fourth Proportional to 29,455.20, 44,128.80 and 13,838.40

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Solution

The fourth proportional to 29,455.20, 44,128.80 and 13,838.40 is: 20,732.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,455.20 : 44,128.80 = 13,838.40 : x
  2. Step 2: Convert to fraction form
    29,455.20/44,128.80 = 13,838.40/x
  3. Step 3: Cross multiply
    29,455.20x = 44,128.80 × 13,838.40
  4. Step 4: Simplify right side
    29,455.20x = 610,671,985.92
  5. Step 5: Solve for x
    x = 610,671,985.92/29,455.20
  6. Step 6: Final answer
    x = 20,732.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.