Home / 40,899.41-61,349.88-12,818.84

Finding the Fourth Proportional to 40,899.41, 61,349.88 and 12,818.84

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Solution

The fourth proportional to 40,899.41, 61,349.88 and 12,818.84 is: 19,228.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,899.41 : 61,349.88 = 12,818.84 : x
  2. Step 2: Convert to fraction form
    40,899.41/61,349.88 = 12,818.84/x
  3. Step 3: Cross multiply
    40,899.41x = 61,349.88 × 12,818.84
  4. Step 4: Simplify right side
    40,899.41x = 786,434,295.74
  5. Step 5: Solve for x
    x = 786,434,295.74/40,899.41
  6. Step 6: Final answer
    x = 19,228.50

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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.