Home / 19,088.85-28,631.46-11,689.50

Finding the Fourth Proportional to 19,088.85, 28,631.46 and 11,689.50

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Solution

The fourth proportional to 19,088.85, 28,631.46 and 11,689.50 is: 17,533.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,088.85 : 28,631.46 = 11,689.50 : x
  2. Step 2: Convert to fraction form
    19,088.85/28,631.46 = 11,689.50/x
  3. Step 3: Cross multiply
    19,088.85x = 28,631.46 × 11,689.50
  4. Step 4: Simplify right side
    19,088.85x = 334,687,451.67
  5. Step 5: Solve for x
    x = 334,687,451.67/19,088.85
  6. Step 6: Final answer
    x = 17,533.14

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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.