Home / 39,110.07-53,972.03-21,205.10

Finding the Fourth Proportional to 39,110.07, 53,972.03 and 21,205.10

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Solution

The fourth proportional to 39,110.07, 53,972.03 and 21,205.10 is: 29,263.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,110.07 : 53,972.03 = 21,205.10 : x
  2. Step 2: Convert to fraction form
    39,110.07/53,972.03 = 21,205.10/x
  3. Step 3: Cross multiply
    39,110.07x = 53,972.03 × 21,205.10
  4. Step 4: Simplify right side
    39,110.07x = 1,144,482,023.49
  5. Step 5: Solve for x
    x = 1,144,482,023.49/39,110.07
  6. Step 6: Final answer
    x = 29,263.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.