Home / 58,581.12-87,885.60-19,138.20

Finding the Fourth Proportional to 58,581.12, 87,885.60 and 19,138.20

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Solution

The fourth proportional to 58,581.12, 87,885.60 and 19,138.20 is: 28,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,581.12 : 87,885.60 = 19,138.20 : x
  2. Step 2: Convert to fraction form
    58,581.12/87,885.60 = 19,138.20/x
  3. Step 3: Cross multiply
    58,581.12x = 87,885.60 × 19,138.20
  4. Step 4: Simplify right side
    58,581.12x = 1,681,972,189.92
  5. Step 5: Solve for x
    x = 1,681,972,189.92/58,581.12
  6. Step 6: Final answer
    x = 28,711.85

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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.