Home / 19,242.06-28,878.21-9,881.70

Finding the Fourth Proportional to 19,242.06, 28,878.21 and 9,881.70

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Solution

The fourth proportional to 19,242.06, 28,878.21 and 9,881.70 is: 14,830.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.06 : 28,878.21 = 9,881.70 : x
  2. Step 2: Convert to fraction form
    19,242.06/28,878.21 = 9,881.70/x
  3. Step 3: Cross multiply
    19,242.06x = 28,878.21 × 9,881.70
  4. Step 4: Simplify right side
    19,242.06x = 285,365,807.76
  5. Step 5: Solve for x
    x = 285,365,807.76/19,242.06
  6. Step 6: Final answer
    x = 14,830.31

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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.