Home / 38,631.76-53,307.42-21,633.64

Finding the Fourth Proportional to 38,631.76, 53,307.42 and 21,633.64

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Solution

The fourth proportional to 38,631.76, 53,307.42 and 21,633.64 is: 29,851.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,631.76 : 53,307.42 = 21,633.64 : x
  2. Step 2: Convert to fraction form
    38,631.76/53,307.42 = 21,633.64/x
  3. Step 3: Cross multiply
    38,631.76x = 53,307.42 × 21,633.64
  4. Step 4: Simplify right side
    38,631.76x = 1,153,233,533.61
  5. Step 5: Solve for x
    x = 1,153,233,533.61/38,631.76
  6. Step 6: Final answer
    x = 29,851.95

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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.