Home / 14,931.30-22,364.55-12,987.30

Finding the Fourth Proportional to 14,931.30, 22,364.55 and 12,987.30

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Solution

The fourth proportional to 14,931.30, 22,364.55 and 12,987.30 is: 19,452.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,931.30 : 22,364.55 = 12,987.30 : x
  2. Step 2: Convert to fraction form
    14,931.30/22,364.55 = 12,987.30/x
  3. Step 3: Cross multiply
    14,931.30x = 22,364.55 × 12,987.30
  4. Step 4: Simplify right side
    14,931.30x = 290,455,120.22
  5. Step 5: Solve for x
    x = 290,455,120.22/14,931.30
  6. Step 6: Final answer
    x = 19,452.77

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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.