Home / 28,875.36-43,318.50-9,158.88

Finding the Fourth Proportional to 28,875.36, 43,318.50 and 9,158.88

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Solution

The fourth proportional to 28,875.36, 43,318.50 and 9,158.88 is: 13,740.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.36 : 43,318.50 = 9,158.88 : x
  2. Step 2: Convert to fraction form
    28,875.36/43,318.50 = 9,158.88/x
  3. Step 3: Cross multiply
    28,875.36x = 43,318.50 × 9,158.88
  4. Step 4: Simplify right side
    28,875.36x = 396,748,943.28
  5. Step 5: Solve for x
    x = 396,748,943.28/28,875.36
  6. Step 6: Final answer
    x = 13,740.05

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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.