Home / 39,078.84-53,885.19-28,302.40

Finding the Fourth Proportional to 39,078.84, 53,885.19 and 28,302.40

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Solution

The fourth proportional to 39,078.84, 53,885.19 and 28,302.40 is: 39,025.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,078.84 : 53,885.19 = 28,302.40 : x
  2. Step 2: Convert to fraction form
    39,078.84/53,885.19 = 28,302.40/x
  3. Step 3: Cross multiply
    39,078.84x = 53,885.19 × 28,302.40
  4. Step 4: Simplify right side
    39,078.84x = 1,525,080,201.46
  5. Step 5: Solve for x
    x = 1,525,080,201.46/39,078.84
  6. Step 6: Final answer
    x = 39,025.73

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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.