Home / 28,527.16-39,343.58-21,373.88

Finding the Fourth Proportional to 28,527.16, 39,343.58 and 21,373.88

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Solution

The fourth proportional to 28,527.16, 39,343.58 and 21,373.88 is: 29,478.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,527.16 : 39,343.58 = 21,373.88 : x
  2. Step 2: Convert to fraction form
    28,527.16/39,343.58 = 21,373.88/x
  3. Step 3: Cross multiply
    28,527.16x = 39,343.58 × 21,373.88
  4. Step 4: Simplify right side
    28,527.16x = 840,924,957.69
  5. Step 5: Solve for x
    x = 840,924,957.69/28,527.16
  6. Step 6: Final answer
    x = 29,478.05

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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.