Home / 42,419.07-63,636.80-16,121.76

Finding the Fourth Proportional to 42,419.07, 63,636.80 and 16,121.76

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Solution

The fourth proportional to 42,419.07, 63,636.80 and 16,121.76 is: 24,185.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,419.07 : 63,636.80 = 16,121.76 : x
  2. Step 2: Convert to fraction form
    42,419.07/63,636.80 = 16,121.76/x
  3. Step 3: Cross multiply
    42,419.07x = 63,636.80 × 16,121.76
  4. Step 4: Simplify right side
    42,419.07x = 1,025,937,391.51
  5. Step 5: Solve for x
    x = 1,025,937,391.51/42,419.07
  6. Step 6: Final answer
    x = 24,185.76

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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.