Home / 20,457.23-28,243.49-14,095.15

Finding the Fourth Proportional to 20,457.23, 28,243.49 and 14,095.15

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Solution

The fourth proportional to 20,457.23, 28,243.49 and 14,095.15 is: 19,459.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,457.23 : 28,243.49 = 14,095.15 : x
  2. Step 2: Convert to fraction form
    20,457.23/28,243.49 = 14,095.15/x
  3. Step 3: Cross multiply
    20,457.23x = 28,243.49 × 14,095.15
  4. Step 4: Simplify right side
    20,457.23x = 398,096,086.99
  5. Step 5: Solve for x
    x = 398,096,086.99/20,457.23
  6. Step 6: Final answer
    x = 19,459.93

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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.