Home / 21,711.58-29,953.29-14,164.54

Finding the Fourth Proportional to 21,711.58, 29,953.29 and 14,164.54

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Solution

The fourth proportional to 21,711.58, 29,953.29 and 14,164.54 is: 19,541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,711.58 : 29,953.29 = 14,164.54 : x
  2. Step 2: Convert to fraction form
    21,711.58/29,953.29 = 14,164.54/x
  3. Step 3: Cross multiply
    21,711.58x = 29,953.29 × 14,164.54
  4. Step 4: Simplify right side
    21,711.58x = 424,274,574.34
  5. Step 5: Solve for x
    x = 424,274,574.34/21,711.58
  6. Step 6: Final answer
    x = 19,541.40

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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.