Home / 28,901.80-43,352.70-18,533.80

Finding the Fourth Proportional to 28,901.80, 43,352.70 and 18,533.80

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Solution

The fourth proportional to 28,901.80, 43,352.70 and 18,533.80 is: 27,800.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901.80 : 43,352.70 = 18,533.80 : x
  2. Step 2: Convert to fraction form
    28,901.80/43,352.70 = 18,533.80/x
  3. Step 3: Cross multiply
    28,901.80x = 43,352.70 × 18,533.80
  4. Step 4: Simplify right side
    28,901.80x = 803,490,271.26
  5. Step 5: Solve for x
    x = 803,490,271.26/28,901.80
  6. Step 6: Final answer
    x = 27,800.70

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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.