Home / 28,343.47-39,114.35-15,598.12

Finding the Fourth Proportional to 28,343.47, 39,114.35 and 15,598.12

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Solution

The fourth proportional to 28,343.47, 39,114.35 and 15,598.12 is: 21,525.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,343.47 : 39,114.35 = 15,598.12 : x
  2. Step 2: Convert to fraction form
    28,343.47/39,114.35 = 15,598.12/x
  3. Step 3: Cross multiply
    28,343.47x = 39,114.35 × 15,598.12
  4. Step 4: Simplify right side
    28,343.47x = 610,110,149.25
  5. Step 5: Solve for x
    x = 610,110,149.25/28,343.47
  6. Step 6: Final answer
    x = 21,525.60

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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.