Home / 28,303.64-39,059.04-15,556.81

Finding the Fourth Proportional to 28,303.64, 39,059.04 and 15,556.81

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Solution

The fourth proportional to 28,303.64, 39,059.04 and 15,556.81 is: 21,468.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,303.64 : 39,059.04 = 15,556.81 : x
  2. Step 2: Convert to fraction form
    28,303.64/39,059.04 = 15,556.81/x
  3. Step 3: Cross multiply
    28,303.64x = 39,059.04 × 15,556.81
  4. Step 4: Simplify right side
    28,303.64x = 607,634,064.06
  5. Step 5: Solve for x
    x = 607,634,064.06/28,303.64
  6. Step 6: Final answer
    x = 21,468.41

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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.