Home / 28,411.39-39,205.96-15,663.93

Finding the Fourth Proportional to 28,411.39, 39,205.96 and 15,663.93

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Solution

The fourth proportional to 28,411.39, 39,205.96 and 15,663.93 is: 21,615.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,411.39 : 39,205.96 = 15,663.93 : x
  2. Step 2: Convert to fraction form
    28,411.39/39,205.96 = 15,663.93/x
  3. Step 3: Cross multiply
    28,411.39x = 39,205.96 × 15,663.93
  4. Step 4: Simplify right side
    28,411.39x = 614,119,413.02
  5. Step 5: Solve for x
    x = 614,119,413.02/28,411.39
  6. Step 6: Final answer
    x = 21,615.25

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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.