Home / 21,925.32-30,256.90-11,853.76

Finding the Fourth Proportional to 21,925.32, 30,256.90 and 11,853.76

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Solution

The fourth proportional to 21,925.32, 30,256.90 and 11,853.76 is: 16,358.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,925.32 : 30,256.90 = 11,853.76 : x
  2. Step 2: Convert to fraction form
    21,925.32/30,256.90 = 11,853.76/x
  3. Step 3: Cross multiply
    21,925.32x = 30,256.90 × 11,853.76
  4. Step 4: Simplify right side
    21,925.32x = 358,658,030.94
  5. Step 5: Solve for x
    x = 358,658,030.94/21,925.32
  6. Step 6: Final answer
    x = 16,358.17

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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.