Home / 19,420.23-29,159.52-11,109.63

Finding the Fourth Proportional to 19,420.23, 29,159.52 and 11,109.63

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Solution

The fourth proportional to 19,420.23, 29,159.52 and 11,109.63 is: 16,681.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.23 : 29,159.52 = 11,109.63 : x
  2. Step 2: Convert to fraction form
    19,420.23/29,159.52 = 11,109.63/x
  3. Step 3: Cross multiply
    19,420.23x = 29,159.52 × 11,109.63
  4. Step 4: Simplify right side
    19,420.23x = 323,951,478.18
  5. Step 5: Solve for x
    x = 323,951,478.18/19,420.23
  6. Step 6: Final answer
    x = 16,681.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.