Home / 28,424.47-39,225-16,487.05

Finding the Fourth Proportional to 28,424.47, 39,225 and 16,487.05

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Solution

The fourth proportional to 28,424.47, 39,225 and 16,487.05 is: 22,751.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,424.47 : 39,225 = 16,487.05 : x
  2. Step 2: Convert to fraction form
    28,424.47/39,225 = 16,487.05/x
  3. Step 3: Cross multiply
    28,424.47x = 39,225 × 16,487.05
  4. Step 4: Simplify right side
    28,424.47x = 646,704,536.25
  5. Step 5: Solve for x
    x = 646,704,536.25/28,424.47
  6. Step 6: Final answer
    x = 22,751.68

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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.