Home / 38,859.90-58,246.65-21,342.30

Finding the Fourth Proportional to 38,859.90, 58,246.65 and 21,342.30

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Solution

The fourth proportional to 38,859.90, 58,246.65 and 21,342.30 is: 31,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,859.90 : 58,246.65 = 21,342.30 : x
  2. Step 2: Convert to fraction form
    38,859.90/58,246.65 = 21,342.30/x
  3. Step 3: Cross multiply
    38,859.90x = 58,246.65 × 21,342.30
  4. Step 4: Simplify right side
    38,859.90x = 1,243,117,478.30
  5. Step 5: Solve for x
    x = 1,243,117,478.30/38,859.90
  6. Step 6: Final answer
    x = 31,989.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.