Home / 31,116.56-46,685.77-13,587.75

Finding the Fourth Proportional to 31,116.56, 46,685.77 and 13,587.75

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Solution

The fourth proportional to 31,116.56, 46,685.77 and 13,587.75 is: 20,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,116.56 : 46,685.77 = 13,587.75 : x
  2. Step 2: Convert to fraction form
    31,116.56/46,685.77 = 13,587.75/x
  3. Step 3: Cross multiply
    31,116.56x = 46,685.77 × 13,587.75
  4. Step 4: Simplify right side
    31,116.56x = 634,354,537.35
  5. Step 5: Solve for x
    x = 634,354,537.35/31,116.56
  6. Step 6: Final answer
    x = 20,386.40

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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.