Home / 38,397.83-52,986.80-21,401.51

Finding the Fourth Proportional to 38,397.83, 52,986.80 and 21,401.51

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Solution

The fourth proportional to 38,397.83, 52,986.80 and 21,401.51 is: 29,532.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,397.83 : 52,986.80 = 21,401.51 : x
  2. Step 2: Convert to fraction form
    38,397.83/52,986.80 = 21,401.51/x
  3. Step 3: Cross multiply
    38,397.83x = 52,986.80 × 21,401.51
  4. Step 4: Simplify right side
    38,397.83x = 1,133,997,423.06
  5. Step 5: Solve for x
    x = 1,133,997,423.06/38,397.83
  6. Step 6: Final answer
    x = 29,532.85

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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.