Home / 38,007.20-57,010.80-13,075.40

Finding the Fourth Proportional to 38,007.20, 57,010.80 and 13,075.40

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Solution

The fourth proportional to 38,007.20, 57,010.80 and 13,075.40 is: 19,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,007.20 : 57,010.80 = 13,075.40 : x
  2. Step 2: Convert to fraction form
    38,007.20/57,010.80 = 13,075.40/x
  3. Step 3: Cross multiply
    38,007.20x = 57,010.80 × 13,075.40
  4. Step 4: Simplify right side
    38,007.20x = 745,439,014.32
  5. Step 5: Solve for x
    x = 745,439,014.32/38,007.20
  6. Step 6: Final answer
    x = 19,613.10

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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.