Home / 19,858.32-27,394.20-13,485.24

Finding the Fourth Proportional to 19,858.32, 27,394.20 and 13,485.24

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Solution

The fourth proportional to 19,858.32, 27,394.20 and 13,485.24 is: 18,602.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,858.32 : 27,394.20 = 13,485.24 : x
  2. Step 2: Convert to fraction form
    19,858.32/27,394.20 = 13,485.24/x
  3. Step 3: Cross multiply
    19,858.32x = 27,394.20 × 13,485.24
  4. Step 4: Simplify right side
    19,858.32x = 369,417,361.61
  5. Step 5: Solve for x
    x = 369,417,361.61/19,858.32
  6. Step 6: Final answer
    x = 18,602.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.