Home / 19,587.78-27,031.68-11,088.18

Finding the Fourth Proportional to 19,587.78, 27,031.68 and 11,088.18

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Solution

The fourth proportional to 19,587.78, 27,031.68 and 11,088.18 is: 15,302.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.78 : 27,031.68 = 11,088.18 : x
  2. Step 2: Convert to fraction form
    19,587.78/27,031.68 = 11,088.18/x
  3. Step 3: Cross multiply
    19,587.78x = 27,031.68 × 11,088.18
  4. Step 4: Simplify right side
    19,587.78x = 299,732,133.54
  5. Step 5: Solve for x
    x = 299,732,133.54/19,587.78
  6. Step 6: Final answer
    x = 15,302.00

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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.