Home / 28,059.65-38,722.53-15,312.93

Finding the Fourth Proportional to 28,059.65, 38,722.53 and 15,312.93

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Solution

The fourth proportional to 28,059.65, 38,722.53 and 15,312.93 is: 21,131.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,059.65 : 38,722.53 = 15,312.93 : x
  2. Step 2: Convert to fraction form
    28,059.65/38,722.53 = 15,312.93/x
  3. Step 3: Cross multiply
    28,059.65x = 38,722.53 × 15,312.93
  4. Step 4: Simplify right side
    28,059.65x = 592,955,197.70
  5. Step 5: Solve for x
    x = 592,955,197.70/28,059.65
  6. Step 6: Final answer
    x = 21,131.96

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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.