Home / 27,886.32-38,490.23-15,953.40

Finding the Fourth Proportional to 27,886.32, 38,490.23 and 15,953.40

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Solution

The fourth proportional to 27,886.32, 38,490.23 and 15,953.40 is: 22,019.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,886.32 : 38,490.23 = 15,953.40 : x
  2. Step 2: Convert to fraction form
    27,886.32/38,490.23 = 15,953.40/x
  3. Step 3: Cross multiply
    27,886.32x = 38,490.23 × 15,953.40
  4. Step 4: Simplify right side
    27,886.32x = 614,050,035.28
  5. Step 5: Solve for x
    x = 614,050,035.28/27,886.32
  6. Step 6: Final answer
    x = 22,019.76

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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.