Home / 42,918.56-64,392-16,623.44

Finding the Fourth Proportional to 42,918.56, 64,392 and 16,623.44

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Solution

The fourth proportional to 42,918.56, 64,392 and 16,623.44 is: 24,940.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,918.56 : 64,392 = 16,623.44 : x
  2. Step 2: Convert to fraction form
    42,918.56/64,392 = 16,623.44/x
  3. Step 3: Cross multiply
    42,918.56x = 64,392 × 16,623.44
  4. Step 4: Simplify right side
    42,918.56x = 1,070,416,548.48
  5. Step 5: Solve for x
    x = 1,070,416,548.48/42,918.56
  6. Step 6: Final answer
    x = 24,940.64

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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.