Home / 21,475.58-29,638.29-12,525.98

Finding the Fourth Proportional to 21,475.58, 29,638.29 and 12,525.98

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Solution

The fourth proportional to 21,475.58, 29,638.29 and 12,525.98 is: 17,287.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,475.58 : 29,638.29 = 12,525.98 : x
  2. Step 2: Convert to fraction form
    21,475.58/29,638.29 = 12,525.98/x
  3. Step 3: Cross multiply
    21,475.58x = 29,638.29 × 12,525.98
  4. Step 4: Simplify right side
    21,475.58x = 371,248,627.77
  5. Step 5: Solve for x
    x = 371,248,627.77/21,475.58
  6. Step 6: Final answer
    x = 17,287.01

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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.