Home / 28,222.20-42,332.88-6,875.16

Finding the Fourth Proportional to 28,222.20, 42,332.88 and 6,875.16

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Solution

The fourth proportional to 28,222.20, 42,332.88 and 6,875.16 is: 10,312.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.20 : 42,332.88 = 6,875.16 : x
  2. Step 2: Convert to fraction form
    28,222.20/42,332.88 = 6,875.16/x
  3. Step 3: Cross multiply
    28,222.20x = 42,332.88 × 6,875.16
  4. Step 4: Simplify right side
    28,222.20x = 291,045,323.26
  5. Step 5: Solve for x
    x = 291,045,323.26/28,222.20
  6. Step 6: Final answer
    x = 10,312.64

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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.