Home / 39,105.17-58,666.86-12,808.32

Finding the Fourth Proportional to 39,105.17, 58,666.86 and 12,808.32

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Solution

The fourth proportional to 39,105.17, 58,666.86 and 12,808.32 is: 19,215.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,105.17 : 58,666.86 = 12,808.32 : x
  2. Step 2: Convert to fraction form
    39,105.17/58,666.86 = 12,808.32/x
  3. Step 3: Cross multiply
    39,105.17x = 58,666.86 × 12,808.32
  4. Step 4: Simplify right side
    39,105.17x = 751,423,916.28
  5. Step 5: Solve for x
    x = 751,423,916.28/39,105.17
  6. Step 6: Final answer
    x = 19,215.46

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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.