Home / 30,287.35-45,412.80-15,525.10

Finding the Fourth Proportional to 30,287.35, 45,412.80 and 15,525.10

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Solution

The fourth proportional to 30,287.35, 45,412.80 and 15,525.10 is: 23,278.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,287.35 : 45,412.80 = 15,525.10 : x
  2. Step 2: Convert to fraction form
    30,287.35/45,412.80 = 15,525.10/x
  3. Step 3: Cross multiply
    30,287.35x = 45,412.80 × 15,525.10
  4. Step 4: Simplify right side
    30,287.35x = 705,038,261.28
  5. Step 5: Solve for x
    x = 705,038,261.28/30,287.35
  6. Step 6: Final answer
    x = 23,278.31

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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.