Home / 19,681.12-27,347.98-19,432.72

Finding the Fourth Proportional to 19,681.12, 27,347.98 and 19,432.72

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Solution

The fourth proportional to 19,681.12, 27,347.98 and 19,432.72 is: 27,002.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.12 : 27,347.98 = 19,432.72 : x
  2. Step 2: Convert to fraction form
    19,681.12/27,347.98 = 19,432.72/x
  3. Step 3: Cross multiply
    19,681.12x = 27,347.98 × 19,432.72
  4. Step 4: Simplify right side
    19,681.12x = 531,445,637.91
  5. Step 5: Solve for x
    x = 531,445,637.91/19,681.12
  6. Step 6: Final answer
    x = 27,002.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.