Home / 19,643.02-27,088.76-15,159.66

Finding the Fourth Proportional to 19,643.02, 27,088.76 and 15,159.66

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Solution

The fourth proportional to 19,643.02, 27,088.76 and 15,159.66 is: 20,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.02 : 27,088.76 = 15,159.66 : x
  2. Step 2: Convert to fraction form
    19,643.02/27,088.76 = 15,159.66/x
  3. Step 3: Cross multiply
    19,643.02x = 27,088.76 × 15,159.66
  4. Step 4: Simplify right side
    19,643.02x = 410,656,391.42
  5. Step 5: Solve for x
    x = 410,656,391.42/19,643.02
  6. Step 6: Final answer
    x = 20,905.97

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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.