Home / 20,426.79-30,666.11-17,368.23

Finding the Fourth Proportional to 20,426.79, 30,666.11 and 17,368.23

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Solution

The fourth proportional to 20,426.79, 30,666.11 and 17,368.23 is: 26,074.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426.79 : 30,666.11 = 17,368.23 : x
  2. Step 2: Convert to fraction form
    20,426.79/30,666.11 = 17,368.23/x
  3. Step 3: Cross multiply
    20,426.79x = 30,666.11 × 17,368.23
  4. Step 4: Simplify right side
    20,426.79x = 532,616,051.69
  5. Step 5: Solve for x
    x = 532,616,051.69/20,426.79
  6. Step 6: Final answer
    x = 26,074.39

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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.