Home / 30,417.12-41,975.72-16,988.86

Finding the Fourth Proportional to 30,417.12, 41,975.72 and 16,988.86

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Solution

The fourth proportional to 30,417.12, 41,975.72 and 16,988.86 is: 23,444.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,417.12 : 41,975.72 = 16,988.86 : x
  2. Step 2: Convert to fraction form
    30,417.12/41,975.72 = 16,988.86/x
  3. Step 3: Cross multiply
    30,417.12x = 41,975.72 × 16,988.86
  4. Step 4: Simplify right side
    30,417.12x = 713,119,630.48
  5. Step 5: Solve for x
    x = 713,119,630.48/30,417.12
  6. Step 6: Final answer
    x = 23,444.68

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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.