Home / 28,239.50-42,425.44-26,643.68

Finding the Fourth Proportional to 28,239.50, 42,425.44 and 26,643.68

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Solution

The fourth proportional to 28,239.50, 42,425.44 and 26,643.68 is: 40,027.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239.50 : 42,425.44 = 26,643.68 : x
  2. Step 2: Convert to fraction form
    28,239.50/42,425.44 = 26,643.68/x
  3. Step 3: Cross multiply
    28,239.50x = 42,425.44 × 26,643.68
  4. Step 4: Simplify right side
    28,239.50x = 1,130,369,501.87
  5. Step 5: Solve for x
    x = 1,130,369,501.87/28,239.50
  6. Step 6: Final answer
    x = 40,027.96

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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.