Home / 19,405.40-29,145.02-12,061.18

Finding the Fourth Proportional to 19,405.40, 29,145.02 and 12,061.18

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Solution

The fourth proportional to 19,405.40, 29,145.02 and 12,061.18 is: 18,114.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405.40 : 29,145.02 = 12,061.18 : x
  2. Step 2: Convert to fraction form
    19,405.40/29,145.02 = 12,061.18/x
  3. Step 3: Cross multiply
    19,405.40x = 29,145.02 × 12,061.18
  4. Step 4: Simplify right side
    19,405.40x = 351,523,332.32
  5. Step 5: Solve for x
    x = 351,523,332.32/19,405.40
  6. Step 6: Final answer
    x = 18,114.72

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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.