Home / 39,923.60-59,885.40-18,856.72

Finding the Fourth Proportional to 39,923.60, 59,885.40 and 18,856.72

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Solution

The fourth proportional to 39,923.60, 59,885.40 and 18,856.72 is: 28,285.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,923.60 : 59,885.40 = 18,856.72 : x
  2. Step 2: Convert to fraction form
    39,923.60/59,885.40 = 18,856.72/x
  3. Step 3: Cross multiply
    39,923.60x = 59,885.40 × 18,856.72
  4. Step 4: Simplify right side
    39,923.60x = 1,129,241,920.46
  5. Step 5: Solve for x
    x = 1,129,241,920.46/39,923.60
  6. Step 6: Final answer
    x = 28,285.07

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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.