Home / 28,400.69-42,601.08-28,359.68

Finding the Fourth Proportional to 28,400.69, 42,601.08 and 28,359.68

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Solution

The fourth proportional to 28,400.69, 42,601.08 and 28,359.68 is: 42,539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.69 : 42,601.08 = 28,359.68 : x
  2. Step 2: Convert to fraction form
    28,400.69/42,601.08 = 28,359.68/x
  3. Step 3: Cross multiply
    28,400.69x = 42,601.08 × 28,359.68
  4. Step 4: Simplify right side
    28,400.69x = 1,208,152,996.45
  5. Step 5: Solve for x
    x = 1,208,152,996.45/28,400.69
  6. Step 6: Final answer
    x = 42,539.56

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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.