Home / 20,946.61-28,882.67-15,271.35

Finding the Fourth Proportional to 20,946.61, 28,882.67 and 15,271.35

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Solution

The fourth proportional to 20,946.61, 28,882.67 and 15,271.35 is: 21,057.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.61 : 28,882.67 = 15,271.35 : x
  2. Step 2: Convert to fraction form
    20,946.61/28,882.67 = 15,271.35/x
  3. Step 3: Cross multiply
    20,946.61x = 28,882.67 × 15,271.35
  4. Step 4: Simplify right side
    20,946.61x = 441,077,362.50
  5. Step 5: Solve for x
    x = 441,077,362.50/20,946.61
  6. Step 6: Final answer
    x = 21,057.22

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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.