Home / 21,901.84-30,224.58-12,953.77

Finding the Fourth Proportional to 21,901.84, 30,224.58 and 12,953.77

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Solution

The fourth proportional to 21,901.84, 30,224.58 and 12,953.77 is: 17,876.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,901.84 : 30,224.58 = 12,953.77 : x
  2. Step 2: Convert to fraction form
    21,901.84/30,224.58 = 12,953.77/x
  3. Step 3: Cross multiply
    21,901.84x = 30,224.58 × 12,953.77
  4. Step 4: Simplify right side
    21,901.84x = 391,522,041.77
  5. Step 5: Solve for x
    x = 391,522,041.77/21,901.84
  6. Step 6: Final answer
    x = 17,876.22

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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.