Home / 38,670.46-53,368.98-21,677.59

Finding the Fourth Proportional to 38,670.46, 53,368.98 and 21,677.59

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Solution

The fourth proportional to 38,670.46, 53,368.98 and 21,677.59 is: 29,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,670.46 : 53,368.98 = 21,677.59 : x
  2. Step 2: Convert to fraction form
    38,670.46/53,368.98 = 21,677.59/x
  3. Step 3: Cross multiply
    38,670.46x = 53,368.98 × 21,677.59
  4. Step 4: Simplify right side
    38,670.46x = 1,156,910,867.16
  5. Step 5: Solve for x
    x = 1,156,910,867.16/38,670.46
  6. Step 6: Final answer
    x = 29,917.17

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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.