Home / 21,281.74-29,367.74-12,332.12

Finding the Fourth Proportional to 21,281.74, 29,367.74 and 12,332.12

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Solution

The fourth proportional to 21,281.74, 29,367.74 and 12,332.12 is: 17,017.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,281.74 : 29,367.74 = 12,332.12 : x
  2. Step 2: Convert to fraction form
    21,281.74/29,367.74 = 12,332.12/x
  3. Step 3: Cross multiply
    21,281.74x = 29,367.74 × 12,332.12
  4. Step 4: Simplify right side
    21,281.74x = 362,166,598.06
  5. Step 5: Solve for x
    x = 362,166,598.06/21,281.74
  6. Step 6: Final answer
    x = 17,017.72

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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.