Home / 28,971.84-43,348.41-19,123.05

Finding the Fourth Proportional to 28,971.84, 43,348.41 and 19,123.05

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Solution

The fourth proportional to 28,971.84, 43,348.41 and 19,123.05 is: 28,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.84 : 43,348.41 = 19,123.05 : x
  2. Step 2: Convert to fraction form
    28,971.84/43,348.41 = 19,123.05/x
  3. Step 3: Cross multiply
    28,971.84x = 43,348.41 × 19,123.05
  4. Step 4: Simplify right side
    28,971.84x = 828,953,811.85
  5. Step 5: Solve for x
    x = 828,953,811.85/28,971.84
  6. Step 6: Final answer
    x = 28,612.40

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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.