Home / 21,098.04-31,637.14-12,335.64

Finding the Fourth Proportional to 21,098.04, 31,637.14 and 12,335.64

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Solution

The fourth proportional to 21,098.04, 31,637.14 and 12,335.64 is: 18,497.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,098.04 : 31,637.14 = 12,335.64 : x
  2. Step 2: Convert to fraction form
    21,098.04/31,637.14 = 12,335.64/x
  3. Step 3: Cross multiply
    21,098.04x = 31,637.14 × 12,335.64
  4. Step 4: Simplify right side
    21,098.04x = 390,264,369.67
  5. Step 5: Solve for x
    x = 390,264,369.67/21,098.04
  6. Step 6: Final answer
    x = 18,497.66

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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.