Home / 42,428.60-63,626.70-12,836.60

Finding the Fourth Proportional to 42,428.60, 63,626.70 and 12,836.60

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Solution

The fourth proportional to 42,428.60, 63,626.70 and 12,836.60 is: 19,250.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,428.60 : 63,626.70 = 12,836.60 : x
  2. Step 2: Convert to fraction form
    42,428.60/63,626.70 = 12,836.60/x
  3. Step 3: Cross multiply
    42,428.60x = 63,626.70 × 12,836.60
  4. Step 4: Simplify right side
    42,428.60x = 816,750,497.22
  5. Step 5: Solve for x
    x = 816,750,497.22/42,428.60
  6. Step 6: Final answer
    x = 19,250.00

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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.