Home / 23,057.06-31,818.86-12,985.67

Finding the Fourth Proportional to 23,057.06, 31,818.86 and 12,985.67

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Solution

The fourth proportional to 23,057.06, 31,818.86 and 12,985.67 is: 17,920.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,057.06 : 31,818.86 = 12,985.67 : x
  2. Step 2: Convert to fraction form
    23,057.06/31,818.86 = 12,985.67/x
  3. Step 3: Cross multiply
    23,057.06x = 31,818.86 × 12,985.67
  4. Step 4: Simplify right side
    23,057.06x = 413,189,215.74
  5. Step 5: Solve for x
    x = 413,189,215.74/23,057.06
  6. Step 6: Final answer
    x = 17,920.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.