Home / 39,012.07-58,518.12-9,429.90

Finding the Fourth Proportional to 39,012.07, 58,518.12 and 9,429.90

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Solution

The fourth proportional to 39,012.07, 58,518.12 and 9,429.90 is: 14,144.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,012.07 : 58,518.12 = 9,429.90 : x
  2. Step 2: Convert to fraction form
    39,012.07/58,518.12 = 9,429.90/x
  3. Step 3: Cross multiply
    39,012.07x = 58,518.12 × 9,429.90
  4. Step 4: Simplify right side
    39,012.07x = 551,820,019.79
  5. Step 5: Solve for x
    x = 551,820,019.79/39,012.07
  6. Step 6: Final answer
    x = 14,144.85

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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.