Home / 28,185.32-38,886.28-16,248.41

Finding the Fourth Proportional to 28,185.32, 38,886.28 and 16,248.41

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Solution

The fourth proportional to 28,185.32, 38,886.28 and 16,248.41 is: 22,417.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,185.32 : 38,886.28 = 16,248.41 : x
  2. Step 2: Convert to fraction form
    28,185.32/38,886.28 = 16,248.41/x
  3. Step 3: Cross multiply
    28,185.32x = 38,886.28 × 16,248.41
  4. Step 4: Simplify right side
    28,185.32x = 631,839,985.76
  5. Step 5: Solve for x
    x = 631,839,985.76/28,185.32
  6. Step 6: Final answer
    x = 22,417.34

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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.