Home / 30,886.61-42,624.29-18,956.52

Finding the Fourth Proportional to 30,886.61, 42,624.29 and 18,956.52

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Solution

The fourth proportional to 30,886.61, 42,624.29 and 18,956.52 is: 26,160.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,886.61 : 42,624.29 = 18,956.52 : x
  2. Step 2: Convert to fraction form
    30,886.61/42,624.29 = 18,956.52/x
  3. Step 3: Cross multiply
    30,886.61x = 42,624.29 × 18,956.52
  4. Step 4: Simplify right side
    30,886.61x = 808,008,253.26
  5. Step 5: Solve for x
    x = 808,008,253.26/30,886.61
  6. Step 6: Final answer
    x = 26,160.47

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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.