Home / 28,318.19-42,477.35-7,541.69

Finding the Fourth Proportional to 28,318.19, 42,477.35 and 7,541.69

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Solution

The fourth proportional to 28,318.19, 42,477.35 and 7,541.69 is: 11,312.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,318.19 : 42,477.35 = 7,541.69 : x
  2. Step 2: Convert to fraction form
    28,318.19/42,477.35 = 7,541.69/x
  3. Step 3: Cross multiply
    28,318.19x = 42,477.35 × 7,541.69
  4. Step 4: Simplify right side
    28,318.19x = 320,350,755.63
  5. Step 5: Solve for x
    x = 320,350,755.63/28,318.19
  6. Step 6: Final answer
    x = 11,312.55

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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.