Home / 19,681.04-29,506.21-13,425.55

Finding the Fourth Proportional to 19,681.04, 29,506.21 and 13,425.55

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Solution

The fourth proportional to 19,681.04, 29,506.21 and 13,425.55 is: 20,127.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.04 : 29,506.21 = 13,425.55 : x
  2. Step 2: Convert to fraction form
    19,681.04/29,506.21 = 13,425.55/x
  3. Step 3: Cross multiply
    19,681.04x = 29,506.21 × 13,425.55
  4. Step 4: Simplify right side
    19,681.04x = 396,136,990.34
  5. Step 5: Solve for x
    x = 396,136,990.34/19,681.04
  6. Step 6: Final answer
    x = 20,127.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.