Home / 19,427.72-26,822.52-13,457.24

Finding the Fourth Proportional to 19,427.72, 26,822.52 and 13,457.24

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Solution

The fourth proportional to 19,427.72, 26,822.52 and 13,457.24 is: 18,579.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,427.72 : 26,822.52 = 13,457.24 : x
  2. Step 2: Convert to fraction form
    19,427.72/26,822.52 = 13,457.24/x
  3. Step 3: Cross multiply
    19,427.72x = 26,822.52 × 13,457.24
  4. Step 4: Simplify right side
    19,427.72x = 360,957,089.04
  5. Step 5: Solve for x
    x = 360,957,089.04/19,427.72
  6. Step 6: Final answer
    x = 18,579.49

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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.