Home / 28,588.36-42,878.76-18,027.04

Finding the Fourth Proportional to 28,588.36, 42,878.76 and 18,027.04

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Solution

The fourth proportional to 28,588.36, 42,878.76 and 18,027.04 is: 27,038.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,588.36 : 42,878.76 = 18,027.04 : x
  2. Step 2: Convert to fraction form
    28,588.36/42,878.76 = 18,027.04/x
  3. Step 3: Cross multiply
    28,588.36x = 42,878.76 × 18,027.04
  4. Step 4: Simplify right side
    28,588.36x = 772,977,121.67
  5. Step 5: Solve for x
    x = 772,977,121.67/28,588.36
  6. Step 6: Final answer
    x = 27,038.18

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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.