Home / 28,017.18-42,019.83-9,292.86

Finding the Fourth Proportional to 28,017.18, 42,019.83 and 9,292.86

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Solution

The fourth proportional to 28,017.18, 42,019.83 and 9,292.86 is: 13,937.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.18 : 42,019.83 = 9,292.86 : x
  2. Step 2: Convert to fraction form
    28,017.18/42,019.83 = 9,292.86/x
  3. Step 3: Cross multiply
    28,017.18x = 42,019.83 × 9,292.86
  4. Step 4: Simplify right side
    28,017.18x = 390,484,397.41
  5. Step 5: Solve for x
    x = 390,484,397.41/28,017.18
  6. Step 6: Final answer
    x = 13,937.32

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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.