Home / 28,144.29-42,216.43-13,345.13

Finding the Fourth Proportional to 28,144.29, 42,216.43 and 13,345.13

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Solution

The fourth proportional to 28,144.29, 42,216.43 and 13,345.13 is: 20,017.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,144.29 : 42,216.43 = 13,345.13 : x
  2. Step 2: Convert to fraction form
    28,144.29/42,216.43 = 13,345.13/x
  3. Step 3: Cross multiply
    28,144.29x = 42,216.43 × 13,345.13
  4. Step 4: Simplify right side
    28,144.29x = 563,383,746.49
  5. Step 5: Solve for x
    x = 563,383,746.49/28,144.29
  6. Step 6: Final answer
    x = 20,017.69

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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.