Home / 20,523.04-28,316.56-12,562.40

Finding the Fourth Proportional to 20,523.04, 28,316.56 and 12,562.40

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Solution

The fourth proportional to 20,523.04, 28,316.56 and 12,562.40 is: 17,332.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.04 : 28,316.56 = 12,562.40 : x
  2. Step 2: Convert to fraction form
    20,523.04/28,316.56 = 12,562.40/x
  3. Step 3: Cross multiply
    20,523.04x = 28,316.56 × 12,562.40
  4. Step 4: Simplify right side
    20,523.04x = 355,723,953.34
  5. Step 5: Solve for x
    x = 355,723,953.34/20,523.04
  6. Step 6: Final answer
    x = 17,332.91

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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.