Home / 28,622.84-42,925.51-19,794.90

Finding the Fourth Proportional to 28,622.84, 42,925.51 and 19,794.90

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Solution

The fourth proportional to 28,622.84, 42,925.51 and 19,794.90 is: 29,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,622.84 : 42,925.51 = 19,794.90 : x
  2. Step 2: Convert to fraction form
    28,622.84/42,925.51 = 19,794.90/x
  3. Step 3: Cross multiply
    28,622.84x = 42,925.51 × 19,794.90
  4. Step 4: Simplify right side
    28,622.84x = 849,706,078.92
  5. Step 5: Solve for x
    x = 849,706,078.92/28,622.84
  6. Step 6: Final answer
    x = 29,686.30

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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.