Home / 28,157.01-42,205.14-18,303.36

Finding the Fourth Proportional to 28,157.01, 42,205.14 and 18,303.36

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Solution

The fourth proportional to 28,157.01, 42,205.14 and 18,303.36 is: 27,435.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157.01 : 42,205.14 = 18,303.36 : x
  2. Step 2: Convert to fraction form
    28,157.01/42,205.14 = 18,303.36/x
  3. Step 3: Cross multiply
    28,157.01x = 42,205.14 × 18,303.36
  4. Step 4: Simplify right side
    28,157.01x = 772,495,871.27
  5. Step 5: Solve for x
    x = 772,495,871.27/28,157.01
  6. Step 6: Final answer
    x = 27,435.29

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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.