Home / 32,140.64-48,230.40-12,420.92

Finding the Fourth Proportional to 32,140.64, 48,230.40 and 12,420.92

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Solution

The fourth proportional to 32,140.64, 48,230.40 and 12,420.92 is: 18,638.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,140.64 : 48,230.40 = 12,420.92 : x
  2. Step 2: Convert to fraction form
    32,140.64/48,230.40 = 12,420.92/x
  3. Step 3: Cross multiply
    32,140.64x = 48,230.40 × 12,420.92
  4. Step 4: Simplify right side
    32,140.64x = 599,065,939.97
  5. Step 5: Solve for x
    x = 599,065,939.97/32,140.64
  6. Step 6: Final answer
    x = 18,638.89

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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.