Home / 19,631.79-27,091.80-10,679.13

Finding the Fourth Proportional to 19,631.79, 27,091.80 and 10,679.13

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Solution

The fourth proportional to 19,631.79, 27,091.80 and 10,679.13 is: 14,737.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,631.79 : 27,091.80 = 10,679.13 : x
  2. Step 2: Convert to fraction form
    19,631.79/27,091.80 = 10,679.13/x
  3. Step 3: Cross multiply
    19,631.79x = 27,091.80 × 10,679.13
  4. Step 4: Simplify right side
    19,631.79x = 289,316,854.13
  5. Step 5: Solve for x
    x = 289,316,854.13/19,631.79
  6. Step 6: Final answer
    x = 14,737.16

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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.