Home / 28,436.48-42,659.72-9,712.12

Finding the Fourth Proportional to 28,436.48, 42,659.72 and 9,712.12

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Solution

The fourth proportional to 28,436.48, 42,659.72 and 9,712.12 is: 14,569.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,436.48 : 42,659.72 = 9,712.12 : x
  2. Step 2: Convert to fraction form
    28,436.48/42,659.72 = 9,712.12/x
  3. Step 3: Cross multiply
    28,436.48x = 42,659.72 × 9,712.12
  4. Step 4: Simplify right side
    28,436.48x = 414,316,319.81
  5. Step 5: Solve for x
    x = 414,316,319.81/28,436.48
  6. Step 6: Final answer
    x = 14,569.89

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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.