Home / 30,457.28-42,044.00-18,524.45

Finding the Fourth Proportional to 30,457.28, 42,044.00 and 18,524.45

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Solution

The fourth proportional to 30,457.28, 42,044.00 and 18,524.45 is: 25,571.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,457.28 : 42,044.00 = 18,524.45 : x
  2. Step 2: Convert to fraction form
    30,457.28/42,044.00 = 18,524.45/x
  3. Step 3: Cross multiply
    30,457.28x = 42,044.00 × 18,524.45
  4. Step 4: Simplify right side
    30,457.28x = 778,841,672.96
  5. Step 5: Solve for x
    x = 778,841,672.96/30,457.28
  6. Step 6: Final answer
    x = 25,571.61

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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.