Home / 20,618.99-28,456.23-14,881.19

Finding the Fourth Proportional to 20,618.99, 28,456.23 and 14,881.19

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Solution

The fourth proportional to 20,618.99, 28,456.23 and 14,881.19 is: 20,537.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,618.99 : 28,456.23 = 14,881.19 : x
  2. Step 2: Convert to fraction form
    20,618.99/28,456.23 = 14,881.19/x
  3. Step 3: Cross multiply
    20,618.99x = 28,456.23 × 14,881.19
  4. Step 4: Simplify right side
    20,618.99x = 423,462,423.03
  5. Step 5: Solve for x
    x = 423,462,423.03/20,618.99
  6. Step 6: Final answer
    x = 20,537.50

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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.