Home / 28,107.47-42,148.85-14,956.72

Finding the Fourth Proportional to 28,107.47, 42,148.85 and 14,956.72

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Solution

The fourth proportional to 28,107.47, 42,148.85 and 14,956.72 is: 22,428.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107.47 : 42,148.85 = 14,956.72 : x
  2. Step 2: Convert to fraction form
    28,107.47/42,148.85 = 14,956.72/x
  3. Step 3: Cross multiply
    28,107.47x = 42,148.85 × 14,956.72
  4. Step 4: Simplify right side
    28,107.47x = 630,408,547.77
  5. Step 5: Solve for x
    x = 630,408,547.77/28,107.47
  6. Step 6: Final answer
    x = 22,428.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.