Home / 39,281.34-58,931.24-12,986.08

Finding the Fourth Proportional to 39,281.34, 58,931.24 and 12,986.08

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Solution

The fourth proportional to 39,281.34, 58,931.24 and 12,986.08 is: 19,482.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,281.34 : 58,931.24 = 12,986.08 : x
  2. Step 2: Convert to fraction form
    39,281.34/58,931.24 = 12,986.08/x
  3. Step 3: Cross multiply
    39,281.34x = 58,931.24 × 12,986.08
  4. Step 4: Simplify right side
    39,281.34x = 765,285,797.14
  5. Step 5: Solve for x
    x = 765,285,797.14/39,281.34
  6. Step 6: Final answer
    x = 19,482.17

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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.