Home / 22,748.47-31,423.50-20,626.40

Finding the Fourth Proportional to 22,748.47, 31,423.50 and 20,626.40

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Solution

The fourth proportional to 22,748.47, 31,423.50 and 20,626.40 is: 28,492.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,748.47 : 31,423.50 = 20,626.40 : x
  2. Step 2: Convert to fraction form
    22,748.47/31,423.50 = 20,626.40/x
  3. Step 3: Cross multiply
    22,748.47x = 31,423.50 × 20,626.40
  4. Step 4: Simplify right side
    22,748.47x = 648,153,758.96
  5. Step 5: Solve for x
    x = 648,153,758.96/22,748.47
  6. Step 6: Final answer
    x = 28,492.19

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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.