Home / 39,785.60-59,678.40-12,083.60

Finding the Fourth Proportional to 39,785.60, 59,678.40 and 12,083.60

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Solution

The fourth proportional to 39,785.60, 59,678.40 and 12,083.60 is: 18,125.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,785.60 : 59,678.40 = 12,083.60 : x
  2. Step 2: Convert to fraction form
    39,785.60/59,678.40 = 12,083.60/x
  3. Step 3: Cross multiply
    39,785.60x = 59,678.40 × 12,083.60
  4. Step 4: Simplify right side
    39,785.60x = 721,129,914.24
  5. Step 5: Solve for x
    x = 721,129,914.24/39,785.60
  6. Step 6: Final answer
    x = 18,125.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.