Home / 28,421.89-39,225.14-18,080.81

Finding the Fourth Proportional to 28,421.89, 39,225.14 and 18,080.81

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Solution

The fourth proportional to 28,421.89, 39,225.14 and 18,080.81 is: 24,953.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,421.89 : 39,225.14 = 18,080.81 : x
  2. Step 2: Convert to fraction form
    28,421.89/39,225.14 = 18,080.81/x
  3. Step 3: Cross multiply
    28,421.89x = 39,225.14 × 18,080.81
  4. Step 4: Simplify right side
    28,421.89x = 709,222,303.56
  5. Step 5: Solve for x
    x = 709,222,303.56/28,421.89
  6. Step 6: Final answer
    x = 24,953.38

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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.