Home / 39,070.80-58,606.32-12,778.08

Finding the Fourth Proportional to 39,070.80, 58,606.32 and 12,778.08

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Solution

The fourth proportional to 39,070.80, 58,606.32 and 12,778.08 is: 19,167.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,070.80 : 58,606.32 = 12,778.08 : x
  2. Step 2: Convert to fraction form
    39,070.80/58,606.32 = 12,778.08/x
  3. Step 3: Cross multiply
    39,070.80x = 58,606.32 × 12,778.08
  4. Step 4: Simplify right side
    39,070.80x = 748,876,245.47
  5. Step 5: Solve for x
    x = 748,876,245.47/39,070.80
  6. Step 6: Final answer
    x = 19,167.16

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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.