Home / 19,931.86-27,507.15-11,433.92

Finding the Fourth Proportional to 19,931.86, 27,507.15 and 11,433.92

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Solution

The fourth proportional to 19,931.86, 27,507.15 and 11,433.92 is: 15,779.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.86 : 27,507.15 = 11,433.92 : x
  2. Step 2: Convert to fraction form
    19,931.86/27,507.15 = 11,433.92/x
  3. Step 3: Cross multiply
    19,931.86x = 27,507.15 × 11,433.92
  4. Step 4: Simplify right side
    19,931.86x = 314,514,495.36
  5. Step 5: Solve for x
    x = 314,514,495.36/19,931.86
  6. Step 6: Final answer
    x = 15,779.49

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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.