Home / 21,262.74-31,873.28-7,925.98

Finding the Fourth Proportional to 21,262.74, 31,873.28 and 7,925.98

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Solution

The fourth proportional to 21,262.74, 31,873.28 and 7,925.98 is: 11,881.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,262.74 : 31,873.28 = 7,925.98 : x
  2. Step 2: Convert to fraction form
    21,262.74/31,873.28 = 7,925.98/x
  3. Step 3: Cross multiply
    21,262.74x = 31,873.28 × 7,925.98
  4. Step 4: Simplify right side
    21,262.74x = 252,626,979.81
  5. Step 5: Solve for x
    x = 252,626,979.81/21,262.74
  6. Step 6: Final answer
    x = 11,881.21

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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.