Home / 58,582.96-87,856.28-21,138.18

Finding the Fourth Proportional to 58,582.96, 87,856.28 and 21,138.18

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Solution

The fourth proportional to 58,582.96, 87,856.28 and 21,138.18 is: 31,700.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,582.96 : 87,856.28 = 21,138.18 : x
  2. Step 2: Convert to fraction form
    58,582.96/87,856.28 = 21,138.18/x
  3. Step 3: Cross multiply
    58,582.96x = 87,856.28 × 21,138.18
  4. Step 4: Simplify right side
    58,582.96x = 1,857,121,860.77
  5. Step 5: Solve for x
    x = 1,857,121,860.77/58,582.96
  6. Step 6: Final answer
    x = 31,700.72

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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.