Home / 28,159.75-42,239.63-10,625.48

Finding the Fourth Proportional to 28,159.75, 42,239.63 and 10,625.48

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Solution

The fourth proportional to 28,159.75, 42,239.63 and 10,625.48 is: 15,938.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,159.75 : 42,239.63 = 10,625.48 : x
  2. Step 2: Convert to fraction form
    28,159.75/42,239.63 = 10,625.48/x
  3. Step 3: Cross multiply
    28,159.75x = 42,239.63 × 10,625.48
  4. Step 4: Simplify right side
    28,159.75x = 448,816,343.77
  5. Step 5: Solve for x
    x = 448,816,343.77/28,159.75
  6. Step 6: Final answer
    x = 15,938.22

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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.