Home / 20,740.10-31,045.35-14,908.10

Finding the Fourth Proportional to 20,740.10, 31,045.35 and 14,908.10

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Solution

The fourth proportional to 20,740.10, 31,045.35 and 14,908.10 is: 22,315.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,740.10 : 31,045.35 = 14,908.10 : x
  2. Step 2: Convert to fraction form
    20,740.10/31,045.35 = 14,908.10/x
  3. Step 3: Cross multiply
    20,740.10x = 31,045.35 × 14,908.10
  4. Step 4: Simplify right side
    20,740.10x = 462,827,182.34
  5. Step 5: Solve for x
    x = 462,827,182.34/20,740.10
  6. Step 6: Final answer
    x = 22,315.57

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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.