Home / 19,416.71-29,139.55-14,430.62

Finding the Fourth Proportional to 19,416.71, 29,139.55 and 14,430.62

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Solution

The fourth proportional to 19,416.71, 29,139.55 and 14,430.62 is: 21,656.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,416.71 : 29,139.55 = 14,430.62 : x
  2. Step 2: Convert to fraction form
    19,416.71/29,139.55 = 14,430.62/x
  3. Step 3: Cross multiply
    19,416.71x = 29,139.55 × 14,430.62
  4. Step 4: Simplify right side
    19,416.71x = 420,501,809.79
  5. Step 5: Solve for x
    x = 420,501,809.79/19,416.71
  6. Step 6: Final answer
    x = 21,656.69

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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.