Home / 19,731.43-27,229.61-10,779.01

Finding the Fourth Proportional to 19,731.43, 27,229.61 and 10,779.01

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Solution

The fourth proportional to 19,731.43, 27,229.61 and 10,779.01 is: 14,875.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.43 : 27,229.61 = 10,779.01 : x
  2. Step 2: Convert to fraction form
    19,731.43/27,229.61 = 10,779.01/x
  3. Step 3: Cross multiply
    19,731.43x = 27,229.61 × 10,779.01
  4. Step 4: Simplify right side
    19,731.43x = 293,508,238.49
  5. Step 5: Solve for x
    x = 293,508,238.49/19,731.43
  6. Step 6: Final answer
    x = 14,875.16

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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.