Home / 28,927.40-39,908.40-18,165.94

Finding the Fourth Proportional to 28,927.40, 39,908.40 and 18,165.94

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Solution

The fourth proportional to 28,927.40, 39,908.40 and 18,165.94 is: 25,061.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,927.40 : 39,908.40 = 18,165.94 : x
  2. Step 2: Convert to fraction form
    28,927.40/39,908.40 = 18,165.94/x
  3. Step 3: Cross multiply
    28,927.40x = 39,908.40 × 18,165.94
  4. Step 4: Simplify right side
    28,927.40x = 724,973,432.00
  5. Step 5: Solve for x
    x = 724,973,432.00/28,927.40
  6. Step 6: Final answer
    x = 25,061.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.