Home / 58,628.32-87,932.72-21,181.12

Finding the Fourth Proportional to 58,628.32, 87,932.72 and 21,181.12

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Solution

The fourth proportional to 58,628.32, 87,932.72 and 21,181.12 is: 31,768.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,628.32 : 87,932.72 = 21,181.12 : x
  2. Step 2: Convert to fraction form
    58,628.32/87,932.72 = 21,181.12/x
  3. Step 3: Cross multiply
    58,628.32x = 87,932.72 × 21,181.12
  4. Step 4: Simplify right side
    58,628.32x = 1,862,513,494.25
  5. Step 5: Solve for x
    x = 1,862,513,494.25/58,628.32
  6. Step 6: Final answer
    x = 31,768.15

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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.