Home / 20,616.61-28,457.76-14,665.54

Finding the Fourth Proportional to 20,616.61, 28,457.76 and 14,665.54

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Solution

The fourth proportional to 20,616.61, 28,457.76 and 14,665.54 is: 20,243.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.61 : 28,457.76 = 14,665.54 : x
  2. Step 2: Convert to fraction form
    20,616.61/28,457.76 = 14,665.54/x
  3. Step 3: Cross multiply
    20,616.61x = 28,457.76 × 14,665.54
  4. Step 4: Simplify right side
    20,616.61x = 417,348,417.59
  5. Step 5: Solve for x
    x = 417,348,417.59/20,616.61
  6. Step 6: Final answer
    x = 20,243.31

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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.