Home / 28,088.32-38,730.40-22,967.92

Finding the Fourth Proportional to 28,088.32, 38,730.40 and 22,967.92

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Solution

The fourth proportional to 28,088.32, 38,730.40 and 22,967.92 is: 31,669.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088.32 : 38,730.40 = 22,967.92 : x
  2. Step 2: Convert to fraction form
    28,088.32/38,730.40 = 22,967.92/x
  3. Step 3: Cross multiply
    28,088.32x = 38,730.40 × 22,967.92
  4. Step 4: Simplify right side
    28,088.32x = 889,556,728.77
  5. Step 5: Solve for x
    x = 889,556,728.77/28,088.32
  6. Step 6: Final answer
    x = 31,669.99

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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.