Home / 35,405.57-53,108.36-13,220.68

Finding the Fourth Proportional to 35,405.57, 53,108.36 and 13,220.68

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Solution

The fourth proportional to 35,405.57, 53,108.36 and 13,220.68 is: 19,831.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,405.57 : 53,108.36 = 13,220.68 : x
  2. Step 2: Convert to fraction form
    35,405.57/53,108.36 = 13,220.68/x
  3. Step 3: Cross multiply
    35,405.57x = 53,108.36 × 13,220.68
  4. Step 4: Simplify right side
    35,405.57x = 702,128,434.01
  5. Step 5: Solve for x
    x = 702,128,434.01/35,405.57
  6. Step 6: Final answer
    x = 19,831.02

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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.