Home / 38,646.64-57,929.88-21,970.80

Finding the Fourth Proportional to 38,646.64, 57,929.88 and 21,970.80

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Solution

The fourth proportional to 38,646.64, 57,929.88 and 21,970.80 is: 32,933.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,646.64 : 57,929.88 = 21,970.80 : x
  2. Step 2: Convert to fraction form
    38,646.64/57,929.88 = 21,970.80/x
  3. Step 3: Cross multiply
    38,646.64x = 57,929.88 × 21,970.80
  4. Step 4: Simplify right side
    38,646.64x = 1,272,765,807.50
  5. Step 5: Solve for x
    x = 1,272,765,807.50/38,646.64
  6. Step 6: Final answer
    x = 32,933.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.