Home / 22,513.68-31,040.01-15,427.80

Finding the Fourth Proportional to 22,513.68, 31,040.01 and 15,427.80

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Solution

The fourth proportional to 22,513.68, 31,040.01 and 15,427.80 is: 21,270.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,513.68 : 31,040.01 = 15,427.80 : x
  2. Step 2: Convert to fraction form
    22,513.68/31,040.01 = 15,427.80/x
  3. Step 3: Cross multiply
    22,513.68x = 31,040.01 × 15,427.80
  4. Step 4: Simplify right side
    22,513.68x = 478,879,066.28
  5. Step 5: Solve for x
    x = 478,879,066.28/22,513.68
  6. Step 6: Final answer
    x = 21,270.58

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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.