Home / 42,421.84-63,634.32-16,129.20

Finding the Fourth Proportional to 42,421.84, 63,634.32 and 16,129.20

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Solution

The fourth proportional to 42,421.84, 63,634.32 and 16,129.20 is: 24,194.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,421.84 : 63,634.32 = 16,129.20 : x
  2. Step 2: Convert to fraction form
    42,421.84/63,634.32 = 16,129.20/x
  3. Step 3: Cross multiply
    42,421.84x = 63,634.32 × 16,129.20
  4. Step 4: Simplify right side
    42,421.84x = 1,026,370,674.14
  5. Step 5: Solve for x
    x = 1,026,370,674.14/42,421.84
  6. Step 6: Final answer
    x = 24,194.39

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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.