Home / 43,002.36-64,482.48-13,420.08

Finding the Fourth Proportional to 43,002.36, 64,482.48 and 13,420.08

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Solution

The fourth proportional to 43,002.36, 64,482.48 and 13,420.08 is: 20,123.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,002.36 : 64,482.48 = 13,420.08 : x
  2. Step 2: Convert to fraction form
    43,002.36/64,482.48 = 13,420.08/x
  3. Step 3: Cross multiply
    43,002.36x = 64,482.48 × 13,420.08
  4. Step 4: Simplify right side
    43,002.36x = 865,360,040.20
  5. Step 5: Solve for x
    x = 865,360,040.20/43,002.36
  6. Step 6: Final answer
    x = 20,123.55

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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.