Home / 21,061.95-29,071.08-12,110.45

Finding the Fourth Proportional to 21,061.95, 29,071.08 and 12,110.45

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Solution

The fourth proportional to 21,061.95, 29,071.08 and 12,110.45 is: 16,715.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,061.95 : 29,071.08 = 12,110.45 : x
  2. Step 2: Convert to fraction form
    21,061.95/29,071.08 = 12,110.45/x
  3. Step 3: Cross multiply
    21,061.95x = 29,071.08 × 12,110.45
  4. Step 4: Simplify right side
    21,061.95x = 352,063,715.43
  5. Step 5: Solve for x
    x = 352,063,715.43/21,061.95
  6. Step 6: Final answer
    x = 16,715.63

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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.