Home / 28,176.13-42,285.51-19,270.18

Finding the Fourth Proportional to 28,176.13, 42,285.51 and 19,270.18

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Solution

The fourth proportional to 28,176.13, 42,285.51 and 19,270.18 is: 28,919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.13 : 42,285.51 = 19,270.18 : x
  2. Step 2: Convert to fraction form
    28,176.13/42,285.51 = 19,270.18/x
  3. Step 3: Cross multiply
    28,176.13x = 42,285.51 × 19,270.18
  4. Step 4: Simplify right side
    28,176.13x = 814,849,389.09
  5. Step 5: Solve for x
    x = 814,849,389.09/28,176.13
  6. Step 6: Final answer
    x = 28,919.85

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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.