Home / 35,501.78-53,221.68-13,309.20

Finding the Fourth Proportional to 35,501.78, 53,221.68 and 13,309.20

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Solution

The fourth proportional to 35,501.78, 53,221.68 and 13,309.20 is: 19,952.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,501.78 : 53,221.68 = 13,309.20 : x
  2. Step 2: Convert to fraction form
    35,501.78/53,221.68 = 13,309.20/x
  3. Step 3: Cross multiply
    35,501.78x = 53,221.68 × 13,309.20
  4. Step 4: Simplify right side
    35,501.78x = 708,337,983.46
  5. Step 5: Solve for x
    x = 708,337,983.46/35,501.78
  6. Step 6: Final answer
    x = 19,952.19

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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.