Home / 38,309.45-52,866.03-21,312.83

Finding the Fourth Proportional to 38,309.45, 52,866.03 and 21,312.83

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Solution

The fourth proportional to 38,309.45, 52,866.03 and 21,312.83 is: 29,411.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,309.45 : 52,866.03 = 21,312.83 : x
  2. Step 2: Convert to fraction form
    38,309.45/52,866.03 = 21,312.83/x
  3. Step 3: Cross multiply
    38,309.45x = 52,866.03 × 21,312.83
  4. Step 4: Simplify right side
    38,309.45x = 1,126,724,710.16
  5. Step 5: Solve for x
    x = 1,126,724,710.16/38,309.45
  6. Step 6: Final answer
    x = 29,411.14

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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.