Home / 42,416.40-63,634.60-12,834.48

Finding the Fourth Proportional to 42,416.40, 63,634.60 and 12,834.48

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Solution

The fourth proportional to 42,416.40, 63,634.60 and 12,834.48 is: 19,254.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,416.40 : 63,634.60 = 12,834.48 : x
  2. Step 2: Convert to fraction form
    42,416.40/63,634.60 = 12,834.48/x
  3. Step 3: Cross multiply
    42,416.40x = 63,634.60 × 12,834.48
  4. Step 4: Simplify right side
    42,416.40x = 816,717,001.01
  5. Step 5: Solve for x
    x = 816,717,001.01/42,416.40
  6. Step 6: Final answer
    x = 19,254.75

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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.