Home / 28,996.63-39,959.33-20,598.55

Finding the Fourth Proportional to 28,996.63, 39,959.33 and 20,598.55

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Solution

The fourth proportional to 28,996.63, 39,959.33 and 20,598.55 is: 28,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996.63 : 39,959.33 = 20,598.55 : x
  2. Step 2: Convert to fraction form
    28,996.63/39,959.33 = 20,598.55/x
  3. Step 3: Cross multiply
    28,996.63x = 39,959.33 × 20,598.55
  4. Step 4: Simplify right side
    28,996.63x = 823,104,054.08
  5. Step 5: Solve for x
    x = 823,104,054.08/28,996.63
  6. Step 6: Final answer
    x = 28,386.20

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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.