Home / 20,623.92-28,461.02-11,192.48

Finding the Fourth Proportional to 20,623.92, 28,461.02 and 11,192.48

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Solution

The fourth proportional to 20,623.92, 28,461.02 and 11,192.48 is: 15,445.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623.92 : 28,461.02 = 11,192.48 : x
  2. Step 2: Convert to fraction form
    20,623.92/28,461.02 = 11,192.48/x
  3. Step 3: Cross multiply
    20,623.92x = 28,461.02 × 11,192.48
  4. Step 4: Simplify right side
    20,623.92x = 318,549,368.55
  5. Step 5: Solve for x
    x = 318,549,368.55/20,623.92
  6. Step 6: Final answer
    x = 15,445.63

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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.