Home / 28,813.23-39,777.93-19,908.63

Finding the Fourth Proportional to 28,813.23, 39,777.93 and 19,908.63

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Solution

The fourth proportional to 28,813.23, 39,777.93 and 19,908.63 is: 27,484.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,813.23 : 39,777.93 = 19,908.63 : x
  2. Step 2: Convert to fraction form
    28,813.23/39,777.93 = 19,908.63/x
  3. Step 3: Cross multiply
    28,813.23x = 39,777.93 × 19,908.63
  4. Step 4: Simplify right side
    28,813.23x = 791,924,090.54
  5. Step 5: Solve for x
    x = 791,924,090.54/28,813.23
  6. Step 6: Final answer
    x = 27,484.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.