Home / 21,490.08-32,088.05-19,254.48

Finding the Fourth Proportional to 21,490.08, 32,088.05 and 19,254.48

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Solution

The fourth proportional to 21,490.08, 32,088.05 and 19,254.48 is: 28,749.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490.08 : 32,088.05 = 19,254.48 : x
  2. Step 2: Convert to fraction form
    21,490.08/32,088.05 = 19,254.48/x
  3. Step 3: Cross multiply
    21,490.08x = 32,088.05 × 19,254.48
  4. Step 4: Simplify right side
    21,490.08x = 617,838,620.69
  5. Step 5: Solve for x
    x = 617,838,620.69/21,490.08
  6. Step 6: Final answer
    x = 28,749.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.