Home / 39,021.93-58,565.70-20,308.50

Finding the Fourth Proportional to 39,021.93, 58,565.70 and 20,308.50

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Solution

The fourth proportional to 39,021.93, 58,565.70 and 20,308.50 is: 30,479.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,021.93 : 58,565.70 = 20,308.50 : x
  2. Step 2: Convert to fraction form
    39,021.93/58,565.70 = 20,308.50/x
  3. Step 3: Cross multiply
    39,021.93x = 58,565.70 × 20,308.50
  4. Step 4: Simplify right side
    39,021.93x = 1,189,381,518.45
  5. Step 5: Solve for x
    x = 1,189,381,518.45/39,021.93
  6. Step 6: Final answer
    x = 30,479.82

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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.