Home / 28,407.57-42,617.51-10,877.39

Finding the Fourth Proportional to 28,407.57, 42,617.51 and 10,877.39

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Solution

The fourth proportional to 28,407.57, 42,617.51 and 10,877.39 is: 16,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,407.57 : 42,617.51 = 10,877.39 : x
  2. Step 2: Convert to fraction form
    28,407.57/42,617.51 = 10,877.39/x
  3. Step 3: Cross multiply
    28,407.57x = 42,617.51 × 10,877.39
  4. Step 4: Simplify right side
    28,407.57x = 463,567,009.62
  5. Step 5: Solve for x
    x = 463,567,009.62/28,407.57
  6. Step 6: Final answer
    x = 16,318.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.