Home / 39,341.74-54,290.89-21,436.87

Finding the Fourth Proportional to 39,341.74, 54,290.89 and 21,436.87

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Solution

The fourth proportional to 39,341.74, 54,290.89 and 21,436.87 is: 29,582.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,341.74 : 54,290.89 = 21,436.87 : x
  2. Step 2: Convert to fraction form
    39,341.74/54,290.89 = 21,436.87/x
  3. Step 3: Cross multiply
    39,341.74x = 54,290.89 × 21,436.87
  4. Step 4: Simplify right side
    39,341.74x = 1,163,826,642.18
  5. Step 5: Solve for x
    x = 1,163,826,642.18/39,341.74
  6. Step 6: Final answer
    x = 29,582.49

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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.