Home / 30,432.72-42,090.48-27,287.76

Finding the Fourth Proportional to 30,432.72, 42,090.48 and 27,287.76

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Solution

The fourth proportional to 30,432.72, 42,090.48 and 27,287.76 is: 37,740.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,432.72 : 42,090.48 = 27,287.76 : x
  2. Step 2: Convert to fraction form
    30,432.72/42,090.48 = 27,287.76/x
  3. Step 3: Cross multiply
    30,432.72x = 42,090.48 × 27,287.76
  4. Step 4: Simplify right side
    30,432.72x = 1,148,554,916.52
  5. Step 5: Solve for x
    x = 1,148,554,916.52/30,432.72
  6. Step 6: Final answer
    x = 37,740.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.