Home / 28,645.95-39,538.67-19,574.98

Finding the Fourth Proportional to 28,645.95, 39,538.67 and 19,574.98

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Solution

The fourth proportional to 28,645.95, 39,538.67 and 19,574.98 is: 27,018.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,645.95 : 39,538.67 = 19,574.98 : x
  2. Step 2: Convert to fraction form
    28,645.95/39,538.67 = 19,574.98/x
  3. Step 3: Cross multiply
    28,645.95x = 39,538.67 × 19,574.98
  4. Step 4: Simplify right side
    28,645.95x = 773,968,772.84
  5. Step 5: Solve for x
    x = 773,968,772.84/28,645.95
  6. Step 6: Final answer
    x = 27,018.44

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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.