Home / 42,412.50-63,618.75-12,829.68

Finding the Fourth Proportional to 42,412.50, 63,618.75 and 12,829.68

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Solution

The fourth proportional to 42,412.50, 63,618.75 and 12,829.68 is: 19,244.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,412.50 : 63,618.75 = 12,829.68 : x
  2. Step 2: Convert to fraction form
    42,412.50/63,618.75 = 12,829.68/x
  3. Step 3: Cross multiply
    42,412.50x = 63,618.75 × 12,829.68
  4. Step 4: Simplify right side
    42,412.50x = 816,208,204.50
  5. Step 5: Solve for x
    x = 816,208,204.50/42,412.50
  6. Step 6: Final answer
    x = 19,244.52

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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.