Home / 39,426.16-54,407.83-21,521.17

Finding the Fourth Proportional to 39,426.16, 54,407.83 and 21,521.17

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Solution

The fourth proportional to 39,426.16, 54,407.83 and 21,521.17 is: 29,699.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,426.16 : 54,407.83 = 21,521.17 : x
  2. Step 2: Convert to fraction form
    39,426.16/54,407.83 = 21,521.17/x
  3. Step 3: Cross multiply
    39,426.16x = 54,407.83 × 21,521.17
  4. Step 4: Simplify right side
    39,426.16x = 1,170,920,102.39
  5. Step 5: Solve for x
    x = 1,170,920,102.39/39,426.16
  6. Step 6: Final answer
    x = 29,699.06

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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.