Home / 27,818.61-38,368.74-19,320.74

Finding the Fourth Proportional to 27,818.61, 38,368.74 and 19,320.74

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Solution

The fourth proportional to 27,818.61, 38,368.74 and 19,320.74 is: 26,648.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,818.61 : 38,368.74 = 19,320.74 : x
  2. Step 2: Convert to fraction form
    27,818.61/38,368.74 = 19,320.74/x
  3. Step 3: Cross multiply
    27,818.61x = 38,368.74 × 19,320.74
  4. Step 4: Simplify right side
    27,818.61x = 741,312,581.30
  5. Step 5: Solve for x
    x = 741,312,581.30/27,818.61
  6. Step 6: Final answer
    x = 26,648.08

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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.