Home / 21,756.66-30,013.52-14,199.50

Finding the Fourth Proportional to 21,756.66, 30,013.52 and 14,199.50

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Solution

The fourth proportional to 21,756.66, 30,013.52 and 14,199.50 is: 19,588.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,756.66 : 30,013.52 = 14,199.50 : x
  2. Step 2: Convert to fraction form
    21,756.66/30,013.52 = 14,199.50/x
  3. Step 3: Cross multiply
    21,756.66x = 30,013.52 × 14,199.50
  4. Step 4: Simplify right side
    21,756.66x = 426,176,756.17
  5. Step 5: Solve for x
    x = 426,176,756.17/21,756.66
  6. Step 6: Final answer
    x = 19,588.34

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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.