Home / 28,293.23-42,445.06-9,318.98

Finding the Fourth Proportional to 28,293.23, 42,445.06 and 9,318.98

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Solution

The fourth proportional to 28,293.23, 42,445.06 and 9,318.98 is: 13,980.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,293.23 : 42,445.06 = 9,318.98 : x
  2. Step 2: Convert to fraction form
    28,293.23/42,445.06 = 9,318.98/x
  3. Step 3: Cross multiply
    28,293.23x = 42,445.06 × 9,318.98
  4. Step 4: Simplify right side
    28,293.23x = 395,544,406.42
  5. Step 5: Solve for x
    x = 395,544,406.42/28,293.23
  6. Step 6: Final answer
    x = 13,980.18

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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.