Home / 27,898.70-38,500.47-15,152.00

Finding the Fourth Proportional to 27,898.70, 38,500.47 and 15,152.00

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Solution

The fourth proportional to 27,898.70, 38,500.47 and 15,152.00 is: 20,909.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,898.70 : 38,500.47 = 15,152.00 : x
  2. Step 2: Convert to fraction form
    27,898.70/38,500.47 = 15,152.00/x
  3. Step 3: Cross multiply
    27,898.70x = 38,500.47 × 15,152.00
  4. Step 4: Simplify right side
    27,898.70x = 583,358,928.94
  5. Step 5: Solve for x
    x = 583,358,928.94/27,898.70
  6. Step 6: Final answer
    x = 20,909.90

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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.