Home / 19,539.90-26,977.29-15,055.14

Finding the Fourth Proportional to 19,539.90, 26,977.29 and 15,055.14

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Solution

The fourth proportional to 19,539.90, 26,977.29 and 15,055.14 is: 20,785.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,539.90 : 26,977.29 = 15,055.14 : x
  2. Step 2: Convert to fraction form
    19,539.90/26,977.29 = 15,055.14/x
  3. Step 3: Cross multiply
    19,539.90x = 26,977.29 × 15,055.14
  4. Step 4: Simplify right side
    19,539.90x = 406,146,877.77
  5. Step 5: Solve for x
    x = 406,146,877.77/19,539.90
  6. Step 6: Final answer
    x = 20,785.51

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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.