Home / 39,607.12-54,657.79-21,703.24

Finding the Fourth Proportional to 39,607.12, 54,657.79 and 21,703.24

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Solution

The fourth proportional to 39,607.12, 54,657.79 and 21,703.24 is: 29,950.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,607.12 : 54,657.79 = 21,703.24 : x
  2. Step 2: Convert to fraction form
    39,607.12/54,657.79 = 21,703.24/x
  3. Step 3: Cross multiply
    39,607.12x = 54,657.79 × 21,703.24
  4. Step 4: Simplify right side
    39,607.12x = 1,186,250,752.43
  5. Step 5: Solve for x
    x = 1,186,250,752.43/39,607.12
  6. Step 6: Final answer
    x = 29,950.45

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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.