Home / 19,672.74-27,148.40-10,720.25

Finding the Fourth Proportional to 19,672.74, 27,148.40 and 10,720.25

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Solution

The fourth proportional to 19,672.74, 27,148.40 and 10,720.25 is: 14,793.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.74 : 27,148.40 = 10,720.25 : x
  2. Step 2: Convert to fraction form
    19,672.74/27,148.40 = 10,720.25/x
  3. Step 3: Cross multiply
    19,672.74x = 27,148.40 × 10,720.25
  4. Step 4: Simplify right side
    19,672.74x = 291,037,445.76
  5. Step 5: Solve for x
    x = 291,037,445.76/19,672.74
  6. Step 6: Final answer
    x = 14,793.95

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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.