Home / 46,139.60-69,209.45-12,859.76

Finding the Fourth Proportional to 46,139.60, 69,209.45 and 12,859.76

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Solution

The fourth proportional to 46,139.60, 69,209.45 and 12,859.76 is: 19,289.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,139.60 : 69,209.45 = 12,859.76 : x
  2. Step 2: Convert to fraction form
    46,139.60/69,209.45 = 12,859.76/x
  3. Step 3: Cross multiply
    46,139.60x = 69,209.45 × 12,859.76
  4. Step 4: Simplify right side
    46,139.60x = 890,016,916.73
  5. Step 5: Solve for x
    x = 890,016,916.73/46,139.60
  6. Step 6: Final answer
    x = 19,289.65

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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.