Home / 38,470.69-57,731.81-13,510.83

Finding the Fourth Proportional to 38,470.69, 57,731.81 and 13,510.83

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Solution

The fourth proportional to 38,470.69, 57,731.81 and 13,510.83 is: 20,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,470.69 : 57,731.81 = 13,510.83 : x
  2. Step 2: Convert to fraction form
    38,470.69/57,731.81 = 13,510.83/x
  3. Step 3: Cross multiply
    38,470.69x = 57,731.81 × 13,510.83
  4. Step 4: Simplify right side
    38,470.69x = 780,004,670.50
  5. Step 5: Solve for x
    x = 780,004,670.50/38,470.69
  6. Step 6: Final answer
    x = 20,275.30

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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.