Home / 39,885.62-59,831.60-13,230.64

Finding the Fourth Proportional to 39,885.62, 59,831.60 and 13,230.64

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Solution

The fourth proportional to 39,885.62, 59,831.60 and 13,230.64 is: 19,847.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,885.62 : 59,831.60 = 13,230.64 : x
  2. Step 2: Convert to fraction form
    39,885.62/59,831.60 = 13,230.64/x
  3. Step 3: Cross multiply
    39,885.62x = 59,831.60 × 13,230.64
  4. Step 4: Simplify right side
    39,885.62x = 791,610,368.86
  5. Step 5: Solve for x
    x = 791,610,368.86/39,885.62
  6. Step 6: Final answer
    x = 19,847.01

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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.