Home / 34,870.72-48,121.68-18,955.16

Finding the Fourth Proportional to 34,870.72, 48,121.68 and 18,955.16

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Solution

The fourth proportional to 34,870.72, 48,121.68 and 18,955.16 is: 26,158.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,870.72 : 48,121.68 = 18,955.16 : x
  2. Step 2: Convert to fraction form
    34,870.72/48,121.68 = 18,955.16/x
  3. Step 3: Cross multiply
    34,870.72x = 48,121.68 × 18,955.16
  4. Step 4: Simplify right side
    34,870.72x = 912,154,143.87
  5. Step 5: Solve for x
    x = 912,154,143.87/34,870.72
  6. Step 6: Final answer
    x = 26,158.17

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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.