Home / 31,856.10-47,790.20-10,510.11

Finding the Fourth Proportional to 31,856.10, 47,790.20 and 10,510.11

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Solution

The fourth proportional to 31,856.10, 47,790.20 and 10,510.11 is: 15,767.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,856.10 : 47,790.20 = 10,510.11 : x
  2. Step 2: Convert to fraction form
    31,856.10/47,790.20 = 10,510.11/x
  3. Step 3: Cross multiply
    31,856.10x = 47,790.20 × 10,510.11
  4. Step 4: Simplify right side
    31,856.10x = 502,280,206.37
  5. Step 5: Solve for x
    x = 502,280,206.37/31,856.10
  6. Step 6: Final answer
    x = 15,767.16

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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.