Home / 30,403.50-45,607.68-10,686.48

Finding the Fourth Proportional to 30,403.50, 45,607.68 and 10,686.48

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Solution

The fourth proportional to 30,403.50, 45,607.68 and 10,686.48 is: 16,030.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,403.50 : 45,607.68 = 10,686.48 : x
  2. Step 2: Convert to fraction form
    30,403.50/45,607.68 = 10,686.48/x
  3. Step 3: Cross multiply
    30,403.50x = 45,607.68 × 10,686.48
  4. Step 4: Simplify right side
    30,403.50x = 487,385,675.74
  5. Step 5: Solve for x
    x = 487,385,675.74/30,403.50
  6. Step 6: Final answer
    x = 16,030.58

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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.