Home / 30,420.12-45,637.51-9,643.62

Finding the Fourth Proportional to 30,420.12, 45,637.51 and 9,643.62

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Solution

The fourth proportional to 30,420.12, 45,637.51 and 9,643.62 is: 14,467.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,420.12 : 45,637.51 = 9,643.62 : x
  2. Step 2: Convert to fraction form
    30,420.12/45,637.51 = 9,643.62/x
  3. Step 3: Cross multiply
    30,420.12x = 45,637.51 × 9,643.62
  4. Step 4: Simplify right side
    30,420.12x = 440,110,804.19
  5. Step 5: Solve for x
    x = 440,110,804.19/30,420.12
  6. Step 6: Final answer
    x = 14,467.75

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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.