Home / 28,328.64-42,456.56-11,700.32

Finding the Fourth Proportional to 28,328.64, 42,456.56 and 11,700.32

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Solution

The fourth proportional to 28,328.64, 42,456.56 and 11,700.32 is: 17,535.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328.64 : 42,456.56 = 11,700.32 : x
  2. Step 2: Convert to fraction form
    28,328.64/42,456.56 = 11,700.32/x
  3. Step 3: Cross multiply
    28,328.64x = 42,456.56 × 11,700.32
  4. Step 4: Simplify right side
    28,328.64x = 496,755,338.10
  5. Step 5: Solve for x
    x = 496,755,338.10/28,328.64
  6. Step 6: Final answer
    x = 17,535.45

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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.