Home / 28,347.32-39,119.48-15,600.16

Finding the Fourth Proportional to 28,347.32, 39,119.48 and 15,600.16

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Solution

The fourth proportional to 28,347.32, 39,119.48 and 15,600.16 is: 21,528.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.32 : 39,119.48 = 15,600.16 : x
  2. Step 2: Convert to fraction form
    28,347.32/39,119.48 = 15,600.16/x
  3. Step 3: Cross multiply
    28,347.32x = 39,119.48 × 15,600.16
  4. Step 4: Simplify right side
    28,347.32x = 610,270,147.12
  5. Step 5: Solve for x
    x = 610,270,147.12/28,347.32
  6. Step 6: Final answer
    x = 21,528.32

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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.