Home / 58,021.20-87,031.80-18,579.60

Finding the Fourth Proportional to 58,021.20, 87,031.80 and 18,579.60

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Solution

The fourth proportional to 58,021.20, 87,031.80 and 18,579.60 is: 27,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,021.20 : 87,031.80 = 18,579.60 : x
  2. Step 2: Convert to fraction form
    58,021.20/87,031.80 = 18,579.60/x
  3. Step 3: Cross multiply
    58,021.20x = 87,031.80 × 18,579.60
  4. Step 4: Simplify right side
    58,021.20x = 1,617,016,031.28
  5. Step 5: Solve for x
    x = 1,617,016,031.28/58,021.20
  6. Step 6: Final answer
    x = 27,869.40

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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.