Home / 19,159.20-28,705.68-13,585.32

Finding the Fourth Proportional to 19,159.20, 28,705.68 and 13,585.32

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Solution

The fourth proportional to 19,159.20, 28,705.68 and 13,585.32 is: 20,354.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,159.20 : 28,705.68 = 13,585.32 : x
  2. Step 2: Convert to fraction form
    19,159.20/28,705.68 = 13,585.32/x
  3. Step 3: Cross multiply
    19,159.20x = 28,705.68 × 13,585.32
  4. Step 4: Simplify right side
    19,159.20x = 389,975,848.62
  5. Step 5: Solve for x
    x = 389,975,848.62/19,159.20
  6. Step 6: Final answer
    x = 20,354.50

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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.