Home / 28,155.48-42,242.54-9,444.35

Finding the Fourth Proportional to 28,155.48, 42,242.54 and 9,444.35

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Solution

The fourth proportional to 28,155.48, 42,242.54 and 9,444.35 is: 14,169.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,155.48 : 42,242.54 = 9,444.35 : x
  2. Step 2: Convert to fraction form
    28,155.48/42,242.54 = 9,444.35/x
  3. Step 3: Cross multiply
    28,155.48x = 42,242.54 × 9,444.35
  4. Step 4: Simplify right side
    28,155.48x = 398,953,074.21
  5. Step 5: Solve for x
    x = 398,953,074.21/28,155.48
  6. Step 6: Final answer
    x = 14,169.64

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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.