Home / 28,210.52-38,931.01-15,462.86

Finding the Fourth Proportional to 28,210.52, 38,931.01 and 15,462.86

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Solution

The fourth proportional to 28,210.52, 38,931.01 and 15,462.86 is: 21,339.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,210.52 : 38,931.01 = 15,462.86 : x
  2. Step 2: Convert to fraction form
    28,210.52/38,931.01 = 15,462.86/x
  3. Step 3: Cross multiply
    28,210.52x = 38,931.01 × 15,462.86
  4. Step 4: Simplify right side
    28,210.52x = 601,984,523.98
  5. Step 5: Solve for x
    x = 601,984,523.98/28,210.52
  6. Step 6: Final answer
    x = 21,339.01

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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.