Home / 38,776.91-58,055.81-31,618.71

Finding the Fourth Proportional to 38,776.91, 58,055.81 and 31,618.71

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Solution

The fourth proportional to 38,776.91, 58,055.81 and 31,618.71 is: 47,338.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,776.91 : 58,055.81 = 31,618.71 : x
  2. Step 2: Convert to fraction form
    38,776.91/58,055.81 = 31,618.71/x
  3. Step 3: Cross multiply
    38,776.91x = 58,055.81 × 31,618.71
  4. Step 4: Simplify right side
    38,776.91x = 1,835,649,662.11
  5. Step 5: Solve for x
    x = 1,835,649,662.11/38,776.91
  6. Step 6: Final answer
    x = 47,338.74

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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.