Home / 28,717.88-43,088.45-12,911.85

Finding the Fourth Proportional to 28,717.88, 43,088.45 and 12,911.85

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Solution

The fourth proportional to 28,717.88, 43,088.45 and 12,911.85 is: 19,373.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.88 : 43,088.45 = 12,911.85 : x
  2. Step 2: Convert to fraction form
    28,717.88/43,088.45 = 12,911.85/x
  3. Step 3: Cross multiply
    28,717.88x = 43,088.45 × 12,911.85
  4. Step 4: Simplify right side
    28,717.88x = 556,351,538.57
  5. Step 5: Solve for x
    x = 556,351,538.57/28,717.88
  6. Step 6: Final answer
    x = 19,373.01

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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.