Home / 34,438.47-47,528.51-21,018.72

Finding the Fourth Proportional to 34,438.47, 47,528.51 and 21,018.72

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Solution

The fourth proportional to 34,438.47, 47,528.51 and 21,018.72 is: 29,007.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,438.47 : 47,528.51 = 21,018.72 : x
  2. Step 2: Convert to fraction form
    34,438.47/47,528.51 = 21,018.72/x
  3. Step 3: Cross multiply
    34,438.47x = 47,528.51 × 21,018.72
  4. Step 4: Simplify right side
    34,438.47x = 998,988,443.71
  5. Step 5: Solve for x
    x = 998,988,443.71/34,438.47
  6. Step 6: Final answer
    x = 29,007.92

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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.