Home / 42,412.40-63,618.60-12,834.80

Finding the Fourth Proportional to 42,412.40, 63,618.60 and 12,834.80

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Solution

The fourth proportional to 42,412.40, 63,618.60 and 12,834.80 is: 19,252.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,412.40 : 63,618.60 = 12,834.80 : x
  2. Step 2: Convert to fraction form
    42,412.40/63,618.60 = 12,834.80/x
  3. Step 3: Cross multiply
    42,412.40x = 63,618.60 × 12,834.80
  4. Step 4: Simplify right side
    42,412.40x = 816,532,007.28
  5. Step 5: Solve for x
    x = 816,532,007.28/42,412.40
  6. Step 6: Final answer
    x = 19,252.20

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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.