Home / 27,790.41-38,352.96-15,851.01

Finding the Fourth Proportional to 27,790.41, 38,352.96 and 15,851.01

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Solution

The fourth proportional to 27,790.41, 38,352.96 and 15,851.01 is: 21,875.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,790.41 : 38,352.96 = 15,851.01 : x
  2. Step 2: Convert to fraction form
    27,790.41/38,352.96 = 15,851.01/x
  3. Step 3: Cross multiply
    27,790.41x = 38,352.96 × 15,851.01
  4. Step 4: Simplify right side
    27,790.41x = 607,933,152.49
  5. Step 5: Solve for x
    x = 607,933,152.49/27,790.41
  6. Step 6: Final answer
    x = 21,875.65

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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.