Home / 39,460.77-54,454.98-21,555.86

Finding the Fourth Proportional to 39,460.77, 54,454.98 and 21,555.86

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Solution

The fourth proportional to 39,460.77, 54,454.98 and 21,555.86 is: 29,746.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,460.77 : 54,454.98 = 21,555.86 : x
  2. Step 2: Convert to fraction form
    39,460.77/54,454.98 = 21,555.86/x
  3. Step 3: Cross multiply
    39,460.77x = 54,454.98 × 21,555.86
  4. Step 4: Simplify right side
    39,460.77x = 1,173,823,733.74
  5. Step 5: Solve for x
    x = 1,173,823,733.74/39,460.77
  6. Step 6: Final answer
    x = 29,746.60

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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.