Home / 42,283.96-63,421.02-11,121.64

Finding the Fourth Proportional to 42,283.96, 63,421.02 and 11,121.64

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Solution

The fourth proportional to 42,283.96, 63,421.02 and 11,121.64 is: 16,681.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,283.96 : 63,421.02 = 11,121.64 : x
  2. Step 2: Convert to fraction form
    42,283.96/63,421.02 = 11,121.64/x
  3. Step 3: Cross multiply
    42,283.96x = 63,421.02 × 11,121.64
  4. Step 4: Simplify right side
    42,283.96x = 705,345,752.87
  5. Step 5: Solve for x
    x = 705,345,752.87/42,283.96
  6. Step 6: Final answer
    x = 16,681.17

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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.