Home / 28,057.30-42,056.36-9,332.32

Finding the Fourth Proportional to 28,057.30, 42,056.36 and 9,332.32

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Solution

The fourth proportional to 28,057.30, 42,056.36 and 9,332.32 is: 13,988.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,057.30 : 42,056.36 = 9,332.32 : x
  2. Step 2: Convert to fraction form
    28,057.30/42,056.36 = 9,332.32/x
  3. Step 3: Cross multiply
    28,057.30x = 42,056.36 × 9,332.32
  4. Step 4: Simplify right side
    28,057.30x = 392,483,409.56
  5. Step 5: Solve for x
    x = 392,483,409.56/28,057.30
  6. Step 6: Final answer
    x = 13,988.64

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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.