Home / 30,388.14-45,567.20-9,323.14

Finding the Fourth Proportional to 30,388.14, 45,567.20 and 9,323.14

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Solution

The fourth proportional to 30,388.14, 45,567.20 and 9,323.14 is: 13,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,388.14 : 45,567.20 = 9,323.14 : x
  2. Step 2: Convert to fraction form
    30,388.14/45,567.20 = 9,323.14/x
  3. Step 3: Cross multiply
    30,388.14x = 45,567.20 × 9,323.14
  4. Step 4: Simplify right side
    30,388.14x = 424,829,385.01
  5. Step 5: Solve for x
    x = 424,829,385.01/30,388.14
  6. Step 6: Final answer
    x = 13,980.10

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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.