Home / 34,554.90-47,686.28-20,407.71

Finding the Fourth Proportional to 34,554.90, 47,686.28 and 20,407.71

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Solution

The fourth proportional to 34,554.90, 47,686.28 and 20,407.71 is: 28,162.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,554.90 : 47,686.28 = 20,407.71 : x
  2. Step 2: Convert to fraction form
    34,554.90/47,686.28 = 20,407.71/x
  3. Step 3: Cross multiply
    34,554.90x = 47,686.28 × 20,407.71
  4. Step 4: Simplify right side
    34,554.90x = 973,167,671.18
  5. Step 5: Solve for x
    x = 973,167,671.18/34,554.90
  6. Step 6: Final answer
    x = 28,162.94

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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.