Home / 30,527.51-45,731.64-21,038.14

Finding the Fourth Proportional to 30,527.51, 45,731.64 and 21,038.14

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Solution

The fourth proportional to 30,527.51, 45,731.64 and 21,038.14 is: 31,516.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,527.51 : 45,731.64 = 21,038.14 : x
  2. Step 2: Convert to fraction form
    30,527.51/45,731.64 = 21,038.14/x
  3. Step 3: Cross multiply
    30,527.51x = 45,731.64 × 21,038.14
  4. Step 4: Simplify right side
    30,527.51x = 962,108,405.23
  5. Step 5: Solve for x
    x = 962,108,405.23/30,527.51
  6. Step 6: Final answer
    x = 31,516.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.