Home / 38,687.36-58,038.30-12,385.04

Finding the Fourth Proportional to 38,687.36, 58,038.30 and 12,385.04

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Solution

The fourth proportional to 38,687.36, 58,038.30 and 12,385.04 is: 18,579.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,687.36 : 58,038.30 = 12,385.04 : x
  2. Step 2: Convert to fraction form
    38,687.36/58,038.30 = 12,385.04/x
  3. Step 3: Cross multiply
    38,687.36x = 58,038.30 × 12,385.04
  4. Step 4: Simplify right side
    38,687.36x = 718,806,667.03
  5. Step 5: Solve for x
    x = 718,806,667.03/38,687.36
  6. Step 6: Final answer
    x = 18,579.88

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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.