Home / 28,923.90-39,903.20-18,848.67

Finding the Fourth Proportional to 28,923.90, 39,903.20 and 18,848.67

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Solution

The fourth proportional to 28,923.90, 39,903.20 and 18,848.67 is: 26,003.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,923.90 : 39,903.20 = 18,848.67 : x
  2. Step 2: Convert to fraction form
    28,923.90/39,903.20 = 18,848.67/x
  3. Step 3: Cross multiply
    28,923.90x = 39,903.20 × 18,848.67
  4. Step 4: Simplify right side
    28,923.90x = 752,122,248.74
  5. Step 5: Solve for x
    x = 752,122,248.74/28,923.90
  6. Step 6: Final answer
    x = 26,003.49

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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.