Home / 28,886.70-43,330.05-18,864.30

Finding the Fourth Proportional to 28,886.70, 43,330.05 and 18,864.30

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Solution

The fourth proportional to 28,886.70, 43,330.05 and 18,864.30 is: 28,296.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,886.70 : 43,330.05 = 18,864.30 : x
  2. Step 2: Convert to fraction form
    28,886.70/43,330.05 = 18,864.30/x
  3. Step 3: Cross multiply
    28,886.70x = 43,330.05 × 18,864.30
  4. Step 4: Simplify right side
    28,886.70x = 817,391,062.22
  5. Step 5: Solve for x
    x = 817,391,062.22/28,886.70
  6. Step 6: Final answer
    x = 28,296.45

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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.