Home / 39,000.42-58,506.71-12,699.05

Finding the Fourth Proportional to 39,000.42, 58,506.71 and 12,699.05

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Solution

The fourth proportional to 39,000.42, 58,506.71 and 12,699.05 is: 19,050.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,000.42 : 58,506.71 = 12,699.05 : x
  2. Step 2: Convert to fraction form
    39,000.42/58,506.71 = 12,699.05/x
  3. Step 3: Cross multiply
    39,000.42x = 58,506.71 × 12,699.05
  4. Step 4: Simplify right side
    39,000.42x = 742,979,279.60
  5. Step 5: Solve for x
    x = 742,979,279.60/39,000.42
  6. Step 6: Final answer
    x = 19,050.55

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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.