Home / 30,209.93-45,317.61-12,436.46

Finding the Fourth Proportional to 30,209.93, 45,317.61 and 12,436.46

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Solution

The fourth proportional to 30,209.93, 45,317.61 and 12,436.46 is: 18,655.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.93 : 45,317.61 = 12,436.46 : x
  2. Step 2: Convert to fraction form
    30,209.93/45,317.61 = 12,436.46/x
  3. Step 3: Cross multiply
    30,209.93x = 45,317.61 × 12,436.46
  4. Step 4: Simplify right side
    30,209.93x = 563,590,417.47
  5. Step 5: Solve for x
    x = 563,590,417.47/30,209.93
  6. Step 6: Final answer
    x = 18,655.80

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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.