Home / 22,527.40-31,088.10-12,455.72

Finding the Fourth Proportional to 22,527.40, 31,088.10 and 12,455.72

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Solution

The fourth proportional to 22,527.40, 31,088.10 and 12,455.72 is: 17,189.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,527.40 : 31,088.10 = 12,455.72 : x
  2. Step 2: Convert to fraction form
    22,527.40/31,088.10 = 12,455.72/x
  3. Step 3: Cross multiply
    22,527.40x = 31,088.10 × 12,455.72
  4. Step 4: Simplify right side
    22,527.40x = 387,224,668.93
  5. Step 5: Solve for x
    x = 387,224,668.93/22,527.40
  6. Step 6: Final answer
    x = 17,189.05

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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.