Home / 28,545.93-39,393.45-15,799.98

Finding the Fourth Proportional to 28,545.93, 39,393.45 and 15,799.98

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Solution

The fourth proportional to 28,545.93, 39,393.45 and 15,799.98 is: 21,804.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545.93 : 39,393.45 = 15,799.98 : x
  2. Step 2: Convert to fraction form
    28,545.93/39,393.45 = 15,799.98/x
  3. Step 3: Cross multiply
    28,545.93x = 39,393.45 × 15,799.98
  4. Step 4: Simplify right side
    28,545.93x = 622,415,643.13
  5. Step 5: Solve for x
    x = 622,415,643.13/28,545.93
  6. Step 6: Final answer
    x = 21,804.01

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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.