Home / 57,431.04-86,146.92-17,985.12

Finding the Fourth Proportional to 57,431.04, 86,146.92 and 17,985.12

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Solution

The fourth proportional to 57,431.04, 86,146.92 and 17,985.12 is: 26,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,431.04 : 86,146.92 = 17,985.12 : x
  2. Step 2: Convert to fraction form
    57,431.04/86,146.92 = 17,985.12/x
  3. Step 3: Cross multiply
    57,431.04x = 86,146.92 × 17,985.12
  4. Step 4: Simplify right side
    57,431.04x = 1,549,362,693.83
  5. Step 5: Solve for x
    x = 1,549,362,693.83/57,431.04
  6. Step 6: Final answer
    x = 26,977.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.