Home / 34,760.16-47,973.36-20,618.40

Finding the Fourth Proportional to 34,760.16, 47,973.36 and 20,618.40

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Solution

The fourth proportional to 34,760.16, 47,973.36 and 20,618.40 is: 28,455.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,760.16 : 47,973.36 = 20,618.40 : x
  2. Step 2: Convert to fraction form
    34,760.16/47,973.36 = 20,618.40/x
  3. Step 3: Cross multiply
    34,760.16x = 47,973.36 × 20,618.40
  4. Step 4: Simplify right side
    34,760.16x = 989,133,925.82
  5. Step 5: Solve for x
    x = 989,133,925.82/34,760.16
  6. Step 6: Final answer
    x = 28,455.97

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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.