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Finding the Fourth Proportional to 39,290.65, 58,934.41 and 9,707.72

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Solution

The fourth proportional to 39,290.65, 58,934.41 and 9,707.72 is: 14,561.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,290.65 : 58,934.41 = 9,707.72 : x
  2. Step 2: Convert to fraction form
    39,290.65/58,934.41 = 9,707.72/x
  3. Step 3: Cross multiply
    39,290.65x = 58,934.41 × 9,707.72
  4. Step 4: Simplify right side
    39,290.65x = 572,118,431.70
  5. Step 5: Solve for x
    x = 572,118,431.70/39,290.65
  6. Step 6: Final answer
    x = 14,561.19

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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.