Home / 38,824.12-53,580.18-21,830.32

Finding the Fourth Proportional to 38,824.12, 53,580.18 and 21,830.32

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Solution

The fourth proportional to 38,824.12, 53,580.18 and 21,830.32 is: 30,127.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,824.12 : 53,580.18 = 21,830.32 : x
  2. Step 2: Convert to fraction form
    38,824.12/53,580.18 = 21,830.32/x
  3. Step 3: Cross multiply
    38,824.12x = 53,580.18 × 21,830.32
  4. Step 4: Simplify right side
    38,824.12x = 1,169,672,475.06
  5. Step 5: Solve for x
    x = 1,169,672,475.06/38,824.12
  6. Step 6: Final answer
    x = 30,127.47

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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.