Home / 38,733.60-53,442-21,966.24

Finding the Fourth Proportional to 38,733.60, 53,442 and 21,966.24

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Solution

The fourth proportional to 38,733.60, 53,442 and 21,966.24 is: 30,307.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,733.60 : 53,442 = 21,966.24 : x
  2. Step 2: Convert to fraction form
    38,733.60/53,442 = 21,966.24/x
  3. Step 3: Cross multiply
    38,733.60x = 53,442 × 21,966.24
  4. Step 4: Simplify right side
    38,733.60x = 1,173,919,798.08
  5. Step 5: Solve for x
    x = 1,173,919,798.08/38,733.60
  6. Step 6: Final answer
    x = 30,307.53

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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.