Home / 39,784.70-59,677.05-18,711.64

Finding the Fourth Proportional to 39,784.70, 59,677.05 and 18,711.64

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Solution

The fourth proportional to 39,784.70, 59,677.05 and 18,711.64 is: 28,067.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,784.70 : 59,677.05 = 18,711.64 : x
  2. Step 2: Convert to fraction form
    39,784.70/59,677.05 = 18,711.64/x
  3. Step 3: Cross multiply
    39,784.70x = 59,677.05 × 18,711.64
  4. Step 4: Simplify right side
    39,784.70x = 1,116,655,620.63
  5. Step 5: Solve for x
    x = 1,116,655,620.63/39,784.70
  6. Step 6: Final answer
    x = 28,067.46

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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.