Home / 28,259.40-42,393.96-11,628.48

Finding the Fourth Proportional to 28,259.40, 42,393.96 and 11,628.48

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Solution

The fourth proportional to 28,259.40, 42,393.96 and 11,628.48 is: 17,444.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,259.40 : 42,393.96 = 11,628.48 : x
  2. Step 2: Convert to fraction form
    28,259.40/42,393.96 = 11,628.48/x
  3. Step 3: Cross multiply
    28,259.40x = 42,393.96 × 11,628.48
  4. Step 4: Simplify right side
    28,259.40x = 492,977,315.98
  5. Step 5: Solve for x
    x = 492,977,315.98/28,259.40
  6. Step 6: Final answer
    x = 17,444.72

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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.