Home / 42,573.66-63,860.52-12,990.84

Finding the Fourth Proportional to 42,573.66, 63,860.52 and 12,990.84

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Solution

The fourth proportional to 42,573.66, 63,860.52 and 12,990.84 is: 19,486.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,573.66 : 63,860.52 = 12,990.84 : x
  2. Step 2: Convert to fraction form
    42,573.66/63,860.52 = 12,990.84/x
  3. Step 3: Cross multiply
    42,573.66x = 63,860.52 × 12,990.84
  4. Step 4: Simplify right side
    42,573.66x = 829,601,797.64
  5. Step 5: Solve for x
    x = 829,601,797.64/42,573.66
  6. Step 6: Final answer
    x = 19,486.27

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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.