Home / 21,294.86-29,386.23-13,341.38

Finding the Fourth Proportional to 21,294.86, 29,386.23 and 13,341.38

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Solution

The fourth proportional to 21,294.86, 29,386.23 and 13,341.38 is: 18,410.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294.86 : 29,386.23 = 13,341.38 : x
  2. Step 2: Convert to fraction form
    21,294.86/29,386.23 = 13,341.38/x
  3. Step 3: Cross multiply
    21,294.86x = 29,386.23 × 13,341.38
  4. Step 4: Simplify right side
    21,294.86x = 392,052,861.20
  5. Step 5: Solve for x
    x = 392,052,861.20/21,294.86
  6. Step 6: Final answer
    x = 18,410.68

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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.