Home / 42,400.99-63,608.40-14,322.72

Finding the Fourth Proportional to 42,400.99, 63,608.40 and 14,322.72

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Solution

The fourth proportional to 42,400.99, 63,608.40 and 14,322.72 is: 21,486.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,400.99 : 63,608.40 = 14,322.72 : x
  2. Step 2: Convert to fraction form
    42,400.99/63,608.40 = 14,322.72/x
  3. Step 3: Cross multiply
    42,400.99x = 63,608.40 × 14,322.72
  4. Step 4: Simplify right side
    42,400.99x = 911,045,302.85
  5. Step 5: Solve for x
    x = 911,045,302.85/42,400.99
  6. Step 6: Final answer
    x = 21,486.42

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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.