Home / 21,672.07-29,905.23-14,871.93

Finding the Fourth Proportional to 21,672.07, 29,905.23 and 14,871.93

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Solution

The fourth proportional to 21,672.07, 29,905.23 and 14,871.93 is: 20,521.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,672.07 : 29,905.23 = 14,871.93 : x
  2. Step 2: Convert to fraction form
    21,672.07/29,905.23 = 14,871.93/x
  3. Step 3: Cross multiply
    21,672.07x = 29,905.23 × 14,871.93
  4. Step 4: Simplify right side
    21,672.07x = 444,748,487.19
  5. Step 5: Solve for x
    x = 444,748,487.19/21,672.07
  6. Step 6: Final answer
    x = 20,521.74

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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.