Home / 28,935.36-43,312.32-18,554.40

Finding the Fourth Proportional to 28,935.36, 43,312.32 and 18,554.40

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Solution

The fourth proportional to 28,935.36, 43,312.32 and 18,554.40 is: 27,773.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,935.36 : 43,312.32 = 18,554.40 : x
  2. Step 2: Convert to fraction form
    28,935.36/43,312.32 = 18,554.40/x
  3. Step 3: Cross multiply
    28,935.36x = 43,312.32 × 18,554.40
  4. Step 4: Simplify right side
    28,935.36x = 803,634,110.21
  5. Step 5: Solve for x
    x = 803,634,110.21/28,935.36
  6. Step 6: Final answer
    x = 27,773.43

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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.