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Finding the Fourth Proportional to 28,269.40, 42,404.10 and 23,895.40

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Solution

The fourth proportional to 28,269.40, 42,404.10 and 23,895.40 is: 35,843.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,269.40 : 42,404.10 = 23,895.40 : x
  2. Step 2: Convert to fraction form
    28,269.40/42,404.10 = 23,895.40/x
  3. Step 3: Cross multiply
    28,269.40x = 42,404.10 × 23,895.40
  4. Step 4: Simplify right side
    28,269.40x = 1,013,262,931.14
  5. Step 5: Solve for x
    x = 1,013,262,931.14/28,269.40
  6. Step 6: Final answer
    x = 35,843.10

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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.