Home / 31,678.79-47,527.16-15,864.74

Finding the Fourth Proportional to 31,678.79, 47,527.16 and 15,864.74

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Solution

The fourth proportional to 31,678.79, 47,527.16 and 15,864.74 is: 23,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,678.79 : 47,527.16 = 15,864.74 : x
  2. Step 2: Convert to fraction form
    31,678.79/47,527.16 = 15,864.74/x
  3. Step 3: Cross multiply
    31,678.79x = 47,527.16 × 15,864.74
  4. Step 4: Simplify right side
    31,678.79x = 754,005,719.38
  5. Step 5: Solve for x
    x = 754,005,719.38/31,678.79
  6. Step 6: Final answer
    x = 23,801.60

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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.