Home / 38,814.40-58,264.80-21,318.40

Finding the Fourth Proportional to 38,814.40, 58,264.80 and 21,318.40

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Solution

The fourth proportional to 38,814.40, 58,264.80 and 21,318.40 is: 32,001.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,814.40 : 58,264.80 = 21,318.40 : x
  2. Step 2: Convert to fraction form
    38,814.40/58,264.80 = 21,318.40/x
  3. Step 3: Cross multiply
    38,814.40x = 58,264.80 × 21,318.40
  4. Step 4: Simplify right side
    38,814.40x = 1,242,112,312.32
  5. Step 5: Solve for x
    x = 1,242,112,312.32/38,814.40
  6. Step 6: Final answer
    x = 32,001.33

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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.