Home / 27,931.73-38,545.71-15,184.91

Finding the Fourth Proportional to 27,931.73, 38,545.71 and 15,184.91

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Solution

The fourth proportional to 27,931.73, 38,545.71 and 15,184.91 is: 20,955.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,931.73 : 38,545.71 = 15,184.91 : x
  2. Step 2: Convert to fraction form
    27,931.73/38,545.71 = 15,184.91/x
  3. Step 3: Cross multiply
    27,931.73x = 38,545.71 × 15,184.91
  4. Step 4: Simplify right side
    27,931.73x = 585,312,944.51
  5. Step 5: Solve for x
    x = 585,312,944.51/27,931.73
  6. Step 6: Final answer
    x = 20,955.13

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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.