Home / 28,885.56-39,840.74-18,264.94

Finding the Fourth Proportional to 28,885.56, 39,840.74 and 18,264.94

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Solution

The fourth proportional to 28,885.56, 39,840.74 and 18,264.94 is: 25,192.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,885.56 : 39,840.74 = 18,264.94 : x
  2. Step 2: Convert to fraction form
    28,885.56/39,840.74 = 18,264.94/x
  3. Step 3: Cross multiply
    28,885.56x = 39,840.74 × 18,264.94
  4. Step 4: Simplify right side
    28,885.56x = 727,688,725.66
  5. Step 5: Solve for x
    x = 727,688,725.66/28,885.56
  6. Step 6: Final answer
    x = 25,192.13

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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.