Home / 16,752.30-25,128.45-12,815.70

Finding the Fourth Proportional to 16,752.30, 25,128.45 and 12,815.70

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Solution

The fourth proportional to 16,752.30, 25,128.45 and 12,815.70 is: 19,223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,752.30 : 25,128.45 = 12,815.70 : x
  2. Step 2: Convert to fraction form
    16,752.30/25,128.45 = 12,815.70/x
  3. Step 3: Cross multiply
    16,752.30x = 25,128.45 × 12,815.70
  4. Step 4: Simplify right side
    16,752.30x = 322,038,676.67
  5. Step 5: Solve for x
    x = 322,038,676.67/16,752.30
  6. Step 6: Final answer
    x = 19,223.55

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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.