Home / 34,700.16-47,890.56-20,558.40

Finding the Fourth Proportional to 34,700.16, 47,890.56 and 20,558.40

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Solution

The fourth proportional to 34,700.16, 47,890.56 and 20,558.40 is: 28,373.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,700.16 : 47,890.56 = 20,558.40 : x
  2. Step 2: Convert to fraction form
    34,700.16/47,890.56 = 20,558.40/x
  3. Step 3: Cross multiply
    34,700.16x = 47,890.56 × 20,558.40
  4. Step 4: Simplify right side
    34,700.16x = 984,553,288.70
  5. Step 5: Solve for x
    x = 984,553,288.70/34,700.16
  6. Step 6: Final answer
    x = 28,373.16

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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.