Home / 28,122.29-42,187.53-10,361.45

Finding the Fourth Proportional to 28,122.29, 42,187.53 and 10,361.45

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Solution

The fourth proportional to 28,122.29, 42,187.53 and 10,361.45 is: 15,543.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.29 : 42,187.53 = 10,361.45 : x
  2. Step 2: Convert to fraction form
    28,122.29/42,187.53 = 10,361.45/x
  3. Step 3: Cross multiply
    28,122.29x = 42,187.53 × 10,361.45
  4. Step 4: Simplify right side
    28,122.29x = 437,124,127.04
  5. Step 5: Solve for x
    x = 437,124,127.04/28,122.29
  6. Step 6: Final answer
    x = 15,543.69

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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.