Home / 20,526.84-28,334.07-12,031.70

Finding the Fourth Proportional to 20,526.84, 28,334.07 and 12,031.70

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Solution

The fourth proportional to 20,526.84, 28,334.07 and 12,031.70 is: 16,607.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.84 : 28,334.07 = 12,031.70 : x
  2. Step 2: Convert to fraction form
    20,526.84/28,334.07 = 12,031.70/x
  3. Step 3: Cross multiply
    20,526.84x = 28,334.07 × 12,031.70
  4. Step 4: Simplify right side
    20,526.84x = 340,906,888.35
  5. Step 5: Solve for x
    x = 340,906,888.35/20,526.84
  6. Step 6: Final answer
    x = 16,607.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.