Home / 15,434.30-23,085.51-12,885.90

Finding the Fourth Proportional to 15,434.30, 23,085.51 and 12,885.90

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Solution

The fourth proportional to 15,434.30, 23,085.51 and 12,885.90 is: 19,273.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,434.30 : 23,085.51 = 12,885.90 : x
  2. Step 2: Convert to fraction form
    15,434.30/23,085.51 = 12,885.90/x
  3. Step 3: Cross multiply
    15,434.30x = 23,085.51 × 12,885.90
  4. Step 4: Simplify right side
    15,434.30x = 297,477,573.31
  5. Step 5: Solve for x
    x = 297,477,573.31/15,434.30
  6. Step 6: Final answer
    x = 19,273.80

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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.