Home / 21,424.32-29,543.04-14,352.32

Finding the Fourth Proportional to 21,424.32, 29,543.04 and 14,352.32

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Solution

The fourth proportional to 21,424.32, 29,543.04 and 14,352.32 is: 19,791.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,424.32 : 29,543.04 = 14,352.32 : x
  2. Step 2: Convert to fraction form
    21,424.32/29,543.04 = 14,352.32/x
  3. Step 3: Cross multiply
    21,424.32x = 29,543.04 × 14,352.32
  4. Step 4: Simplify right side
    21,424.32x = 424,011,163.85
  5. Step 5: Solve for x
    x = 424,011,163.85/21,424.32
  6. Step 6: Final answer
    x = 19,791.11

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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.