Home / 28,056.30-42,054.86-9,331.32

Finding the Fourth Proportional to 28,056.30, 42,054.86 and 9,331.32

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Solution

The fourth proportional to 28,056.30, 42,054.86 and 9,331.32 is: 13,987.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,056.30 : 42,054.86 = 9,331.32 : x
  2. Step 2: Convert to fraction form
    28,056.30/42,054.86 = 9,331.32/x
  3. Step 3: Cross multiply
    28,056.30x = 42,054.86 × 9,331.32
  4. Step 4: Simplify right side
    28,056.30x = 392,427,356.22
  5. Step 5: Solve for x
    x = 392,427,356.22/28,056.30
  6. Step 6: Final answer
    x = 13,987.14

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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.