Home / 28,302.18-42,413.04-20,848.02

Finding the Fourth Proportional to 28,302.18, 42,413.04 and 20,848.02

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Solution

The fourth proportional to 28,302.18, 42,413.04 and 20,848.02 is: 31,242.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,302.18 : 42,413.04 = 20,848.02 : x
  2. Step 2: Convert to fraction form
    28,302.18/42,413.04 = 20,848.02/x
  3. Step 3: Cross multiply
    28,302.18x = 42,413.04 × 20,848.02
  4. Step 4: Simplify right side
    28,302.18x = 884,227,906.18
  5. Step 5: Solve for x
    x = 884,227,906.18/28,302.18
  6. Step 6: Final answer
    x = 31,242.40

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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.