Home / 20,461.74-28,237.35-11,509.17

Finding the Fourth Proportional to 20,461.74, 28,237.35 and 11,509.17

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Solution

The fourth proportional to 20,461.74, 28,237.35 and 11,509.17 is: 15,882.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,461.74 : 28,237.35 = 11,509.17 : x
  2. Step 2: Convert to fraction form
    20,461.74/28,237.35 = 11,509.17/x
  3. Step 3: Cross multiply
    20,461.74x = 28,237.35 × 11,509.17
  4. Step 4: Simplify right side
    20,461.74x = 324,988,461.50
  5. Step 5: Solve for x
    x = 324,988,461.50/20,461.74
  6. Step 6: Final answer
    x = 15,882.74

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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.