Home / 21,295.84-31,966.08-10,211.92

Finding the Fourth Proportional to 21,295.84, 31,966.08 and 10,211.92

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Solution

The fourth proportional to 21,295.84, 31,966.08 and 10,211.92 is: 15,328.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.84 : 31,966.08 = 10,211.92 : x
  2. Step 2: Convert to fraction form
    21,295.84/31,966.08 = 10,211.92/x
  3. Step 3: Cross multiply
    21,295.84x = 31,966.08 × 10,211.92
  4. Step 4: Simplify right side
    21,295.84x = 326,435,051.67
  5. Step 5: Solve for x
    x = 326,435,051.67/21,295.84
  6. Step 6: Final answer
    x = 15,328.58

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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.