Home / 21,153.95-31,736.18-14,926.12

Finding the Fourth Proportional to 21,153.95, 31,736.18 and 14,926.12

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Solution

The fourth proportional to 21,153.95, 31,736.18 and 14,926.12 is: 22,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153.95 : 31,736.18 = 14,926.12 : x
  2. Step 2: Convert to fraction form
    21,153.95/31,736.18 = 14,926.12/x
  3. Step 3: Cross multiply
    21,153.95x = 31,736.18 × 14,926.12
  4. Step 4: Simplify right side
    21,153.95x = 473,698,125.53
  5. Step 5: Solve for x
    x = 473,698,125.53/21,153.95
  6. Step 6: Final answer
    x = 22,392.90

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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.