Home / 21,543.04-29,733.60-12,111.04

Finding the Fourth Proportional to 21,543.04, 29,733.60 and 12,111.04

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Solution

The fourth proportional to 21,543.04, 29,733.60 and 12,111.04 is: 16,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,543.04 : 29,733.60 = 12,111.04 : x
  2. Step 2: Convert to fraction form
    21,543.04/29,733.60 = 12,111.04/x
  3. Step 3: Cross multiply
    21,543.04x = 29,733.60 × 12,111.04
  4. Step 4: Simplify right side
    21,543.04x = 360,104,818.94
  5. Step 5: Solve for x
    x = 360,104,818.94/21,543.04
  6. Step 6: Final answer
    x = 16,715.60

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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.