Home / 28,001.80-42,002.70-9,533.80

Finding the Fourth Proportional to 28,001.80, 42,002.70 and 9,533.80

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Solution

The fourth proportional to 28,001.80, 42,002.70 and 9,533.80 is: 14,300.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001.80 : 42,002.70 = 9,533.80 : x
  2. Step 2: Convert to fraction form
    28,001.80/42,002.70 = 9,533.80/x
  3. Step 3: Cross multiply
    28,001.80x = 42,002.70 × 9,533.80
  4. Step 4: Simplify right side
    28,001.80x = 400,445,341.26
  5. Step 5: Solve for x
    x = 400,445,341.26/28,001.80
  6. Step 6: Final answer
    x = 14,300.70

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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.