Home / 19,241.04-28,809.40-9,987.60

Finding the Fourth Proportional to 19,241.04, 28,809.40 and 9,987.60

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Solution

The fourth proportional to 19,241.04, 28,809.40 and 9,987.60 is: 14,954.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,241.04 : 28,809.40 = 9,987.60 : x
  2. Step 2: Convert to fraction form
    19,241.04/28,809.40 = 9,987.60/x
  3. Step 3: Cross multiply
    19,241.04x = 28,809.40 × 9,987.60
  4. Step 4: Simplify right side
    19,241.04x = 287,736,763.44
  5. Step 5: Solve for x
    x = 287,736,763.44/19,241.04
  6. Step 6: Final answer
    x = 14,954.32

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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.