Home / 34,657.91-47,840.17-20,510.72

Finding the Fourth Proportional to 34,657.91, 47,840.17 and 20,510.72

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Solution

The fourth proportional to 34,657.91, 47,840.17 and 20,510.72 is: 28,312.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,657.91 : 47,840.17 = 20,510.72 : x
  2. Step 2: Convert to fraction form
    34,657.91/47,840.17 = 20,510.72/x
  3. Step 3: Cross multiply
    34,657.91x = 47,840.17 × 20,510.72
  4. Step 4: Simplify right side
    34,657.91x = 981,236,259.00
  5. Step 5: Solve for x
    x = 981,236,259.00/34,657.91
  6. Step 6: Final answer
    x = 28,312.04

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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.