Home / 40,763.40-61,153.58-12,685.48

Finding the Fourth Proportional to 40,763.40, 61,153.58 and 12,685.48

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Solution

The fourth proportional to 40,763.40, 61,153.58 and 12,685.48 is: 19,030.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,763.40 : 61,153.58 = 12,685.48 : x
  2. Step 2: Convert to fraction form
    40,763.40/61,153.58 = 12,685.48/x
  3. Step 3: Cross multiply
    40,763.40x = 61,153.58 × 12,685.48
  4. Step 4: Simplify right side
    40,763.40x = 775,762,516.02
  5. Step 5: Solve for x
    x = 775,762,516.02/40,763.40
  6. Step 6: Final answer
    x = 19,030.86

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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.