Home / 22,590.24-31,172.04-12,518.40

Finding the Fourth Proportional to 22,590.24, 31,172.04 and 12,518.40

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Solution

The fourth proportional to 22,590.24, 31,172.04 and 12,518.40 is: 17,274.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,590.24 : 31,172.04 = 12,518.40 : x
  2. Step 2: Convert to fraction form
    22,590.24/31,172.04 = 12,518.40/x
  3. Step 3: Cross multiply
    22,590.24x = 31,172.04 × 12,518.40
  4. Step 4: Simplify right side
    22,590.24x = 390,224,065.54
  5. Step 5: Solve for x
    x = 390,224,065.54/22,590.24
  6. Step 6: Final answer
    x = 17,274.01

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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.