Home / 30,750.15-42,432.06-17,319.27

Finding the Fourth Proportional to 30,750.15, 42,432.06 and 17,319.27

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Solution

The fourth proportional to 30,750.15, 42,432.06 and 17,319.27 is: 23,898.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,750.15 : 42,432.06 = 17,319.27 : x
  2. Step 2: Convert to fraction form
    30,750.15/42,432.06 = 17,319.27/x
  3. Step 3: Cross multiply
    30,750.15x = 42,432.06 × 17,319.27
  4. Step 4: Simplify right side
    30,750.15x = 734,892,303.80
  5. Step 5: Solve for x
    x = 734,892,303.80/30,750.15
  6. Step 6: Final answer
    x = 23,898.82

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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.