Home / 42,445.75-63,668.64-14,743.75

Finding the Fourth Proportional to 42,445.75, 63,668.64 and 14,743.75

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Solution

The fourth proportional to 42,445.75, 63,668.64 and 14,743.75 is: 22,115.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,445.75 : 63,668.64 = 14,743.75 : x
  2. Step 2: Convert to fraction form
    42,445.75/63,668.64 = 14,743.75/x
  3. Step 3: Cross multiply
    42,445.75x = 63,668.64 × 14,743.75
  4. Step 4: Simplify right side
    42,445.75x = 938,714,511
  5. Step 5: Solve for x
    x = 938,714,511/42,445.75
  6. Step 6: Final answer
    x = 22,115.63

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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.