Home / 28,262.23-42,403.74-11,617.81

Finding the Fourth Proportional to 28,262.23, 42,403.74 and 11,617.81

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Solution

The fourth proportional to 28,262.23, 42,403.74 and 11,617.81 is: 17,430.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262.23 : 42,403.74 = 11,617.81 : x
  2. Step 2: Convert to fraction form
    28,262.23/42,403.74 = 11,617.81/x
  3. Step 3: Cross multiply
    28,262.23x = 42,403.74 × 11,617.81
  4. Step 4: Simplify right side
    28,262.23x = 492,638,594.61
  5. Step 5: Solve for x
    x = 492,638,594.61/28,262.23
  6. Step 6: Final answer
    x = 17,430.99

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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.