Home / 28,010.20-42,047.70-16,929.40

Finding the Fourth Proportional to 28,010.20, 42,047.70 and 16,929.40

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Solution

The fourth proportional to 28,010.20, 42,047.70 and 16,929.40 is: 25,413.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.20 : 42,047.70 = 16,929.40 : x
  2. Step 2: Convert to fraction form
    28,010.20/42,047.70 = 16,929.40/x
  3. Step 3: Cross multiply
    28,010.20x = 42,047.70 × 16,929.40
  4. Step 4: Simplify right side
    28,010.20x = 711,842,332.38
  5. Step 5: Solve for x
    x = 711,842,332.38/28,010.20
  6. Step 6: Final answer
    x = 25,413.68

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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.