Home / 19,130.60-28,695.90-13,225.70

Finding the Fourth Proportional to 19,130.60, 28,695.90 and 13,225.70

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Solution

The fourth proportional to 19,130.60, 28,695.90 and 13,225.70 is: 19,838.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.60 : 28,695.90 = 13,225.70 : x
  2. Step 2: Convert to fraction form
    19,130.60/28,695.90 = 13,225.70/x
  3. Step 3: Cross multiply
    19,130.60x = 28,695.90 × 13,225.70
  4. Step 4: Simplify right side
    19,130.60x = 379,523,364.63
  5. Step 5: Solve for x
    x = 379,523,364.63/19,130.60
  6. Step 6: Final answer
    x = 19,838.55

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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.