Home / 20,527.29-30,746.34-12,605.76

Finding the Fourth Proportional to 20,527.29, 30,746.34 and 12,605.76

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Solution

The fourth proportional to 20,527.29, 30,746.34 and 12,605.76 is: 18,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.29 : 30,746.34 = 12,605.76 : x
  2. Step 2: Convert to fraction form
    20,527.29/30,746.34 = 12,605.76/x
  3. Step 3: Cross multiply
    20,527.29x = 30,746.34 × 12,605.76
  4. Step 4: Simplify right side
    20,527.29x = 387,580,982.92
  5. Step 5: Solve for x
    x = 387,580,982.92/20,527.29
  6. Step 6: Final answer
    x = 18,881.25

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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.