Home / 39,430.86-54,414.74-21,526.26

Finding the Fourth Proportional to 39,430.86, 54,414.74 and 21,526.26

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Solution

The fourth proportional to 39,430.86, 54,414.74 and 21,526.26 is: 29,706.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,430.86 : 54,414.74 = 21,526.26 : x
  2. Step 2: Convert to fraction form
    39,430.86/54,414.74 = 21,526.26/x
  3. Step 3: Cross multiply
    39,430.86x = 54,414.74 × 21,526.26
  4. Step 4: Simplify right side
    39,430.86x = 1,171,345,841.07
  5. Step 5: Solve for x
    x = 1,171,345,841.07/39,430.86
  6. Step 6: Final answer
    x = 29,706.32

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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.