Home / 39,246.85-58,870-12,953.71

Finding the Fourth Proportional to 39,246.85, 58,870 and 12,953.71

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Solution

The fourth proportional to 39,246.85, 58,870 and 12,953.71 is: 19,430.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,246.85 : 58,870 = 12,953.71 : x
  2. Step 2: Convert to fraction form
    39,246.85/58,870 = 12,953.71/x
  3. Step 3: Cross multiply
    39,246.85x = 58,870 × 12,953.71
  4. Step 4: Simplify right side
    39,246.85x = 762,584,907.70
  5. Step 5: Solve for x
    x = 762,584,907.70/39,246.85
  6. Step 6: Final answer
    x = 19,430.47

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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.