Home / 15,431.87-23,178.57-14,561.48

Finding the Fourth Proportional to 15,431.87, 23,178.57 and 14,561.48

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Solution

The fourth proportional to 15,431.87, 23,178.57 and 14,561.48 is: 21,871.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.87 : 23,178.57 = 14,561.48 : x
  2. Step 2: Convert to fraction form
    15,431.87/23,178.57 = 14,561.48/x
  3. Step 3: Cross multiply
    15,431.87x = 23,178.57 × 14,561.48
  4. Step 4: Simplify right side
    15,431.87x = 337,514,341.43
  5. Step 5: Solve for x
    x = 337,514,341.43/15,431.87
  6. Step 6: Final answer
    x = 21,871.25

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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.