Home / 28,665.02-39,556.40-15,919.01

Finding the Fourth Proportional to 28,665.02, 39,556.40 and 15,919.01

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Solution

The fourth proportional to 28,665.02, 39,556.40 and 15,919.01 is: 21,967.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,665.02 : 39,556.40 = 15,919.01 : x
  2. Step 2: Convert to fraction form
    28,665.02/39,556.40 = 15,919.01/x
  3. Step 3: Cross multiply
    28,665.02x = 39,556.40 × 15,919.01
  4. Step 4: Simplify right side
    28,665.02x = 629,698,746.46
  5. Step 5: Solve for x
    x = 629,698,746.46/28,665.02
  6. Step 6: Final answer
    x = 21,967.50

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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.