Home / 26,985.12-37,243.95-15,661.32

Finding the Fourth Proportional to 26,985.12, 37,243.95 and 15,661.32

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Solution

The fourth proportional to 26,985.12, 37,243.95 and 15,661.32 is: 21,615.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,985.12 : 37,243.95 = 15,661.32 : x
  2. Step 2: Convert to fraction form
    26,985.12/37,243.95 = 15,661.32/x
  3. Step 3: Cross multiply
    26,985.12x = 37,243.95 × 15,661.32
  4. Step 4: Simplify right side
    26,985.12x = 583,289,419.01
  5. Step 5: Solve for x
    x = 583,289,419.01/26,985.12
  6. Step 6: Final answer
    x = 21,615.22

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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.