Home / 38,752.55-53,478.06-21,756.37

Finding the Fourth Proportional to 38,752.55, 53,478.06 and 21,756.37

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Solution

The fourth proportional to 38,752.55, 53,478.06 and 21,756.37 is: 30,023.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,752.55 : 53,478.06 = 21,756.37 : x
  2. Step 2: Convert to fraction form
    38,752.55/53,478.06 = 21,756.37/x
  3. Step 3: Cross multiply
    38,752.55x = 53,478.06 × 21,756.37
  4. Step 4: Simplify right side
    38,752.55x = 1,163,488,495.64
  5. Step 5: Solve for x
    x = 1,163,488,495.64/38,752.55
  6. Step 6: Final answer
    x = 30,023.53

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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.