Home / 38,455.59-53,068.67-21,458.82

Finding the Fourth Proportional to 38,455.59, 53,068.67 and 21,458.82

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Solution

The fourth proportional to 38,455.59, 53,068.67 and 21,458.82 is: 29,613.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,455.59 : 53,068.67 = 21,458.82 : x
  2. Step 2: Convert to fraction form
    38,455.59/53,068.67 = 21,458.82/x
  3. Step 3: Cross multiply
    38,455.59x = 53,068.67 × 21,458.82
  4. Step 4: Simplify right side
    38,455.59x = 1,138,791,209.35
  5. Step 5: Solve for x
    x = 1,138,791,209.35/38,455.59
  6. Step 6: Final answer
    x = 29,613.15

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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.