Home / 38,823.81-58,220.98-13,859.20

Finding the Fourth Proportional to 38,823.81, 58,220.98 and 13,859.20

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Solution

The fourth proportional to 38,823.81, 58,220.98 and 13,859.20 is: 20,783.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,823.81 : 58,220.98 = 13,859.20 : x
  2. Step 2: Convert to fraction form
    38,823.81/58,220.98 = 13,859.20/x
  3. Step 3: Cross multiply
    38,823.81x = 58,220.98 × 13,859.20
  4. Step 4: Simplify right side
    38,823.81x = 806,896,244.14
  5. Step 5: Solve for x
    x = 806,896,244.14/38,823.81
  6. Step 6: Final answer
    x = 20,783.54

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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.