Home / 38,438.82-53,041.53-22,520.30

Finding the Fourth Proportional to 38,438.82, 53,041.53 and 22,520.30

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Solution

The fourth proportional to 38,438.82, 53,041.53 and 22,520.30 is: 31,075.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,438.82 : 53,041.53 = 22,520.30 : x
  2. Step 2: Convert to fraction form
    38,438.82/53,041.53 = 22,520.30/x
  3. Step 3: Cross multiply
    38,438.82x = 53,041.53 × 22,520.30
  4. Step 4: Simplify right side
    38,438.82x = 1,194,510,987.30
  5. Step 5: Solve for x
    x = 1,194,510,987.30/38,438.82
  6. Step 6: Final answer
    x = 31,075.64

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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.