Home / 21,056.13-29,022.84-14,925.90

Finding the Fourth Proportional to 21,056.13, 29,022.84 and 14,925.90

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Solution

The fourth proportional to 21,056.13, 29,022.84 and 14,925.90 is: 20,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056.13 : 29,022.84 = 14,925.90 : x
  2. Step 2: Convert to fraction form
    21,056.13/29,022.84 = 14,925.90/x
  3. Step 3: Cross multiply
    21,056.13x = 29,022.84 × 14,925.90
  4. Step 4: Simplify right side
    21,056.13x = 433,191,954.69
  5. Step 5: Solve for x
    x = 433,191,954.69/21,056.13
  6. Step 6: Final answer
    x = 20,573.20

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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.