Home / 28,130.65-42,174.08-14,083.45

Finding the Fourth Proportional to 28,130.65, 42,174.08 and 14,083.45

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Solution

The fourth proportional to 28,130.65, 42,174.08 and 14,083.45 is: 21,114.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130.65 : 42,174.08 = 14,083.45 : x
  2. Step 2: Convert to fraction form
    28,130.65/42,174.08 = 14,083.45/x
  3. Step 3: Cross multiply
    28,130.65x = 42,174.08 × 14,083.45
  4. Step 4: Simplify right side
    28,130.65x = 593,956,546.98
  5. Step 5: Solve for x
    x = 593,956,546.98/28,130.65
  6. Step 6: Final answer
    x = 21,114.21

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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.