Home / 31,535.76-47,300.40-10,477.20

Finding the Fourth Proportional to 31,535.76, 47,300.40 and 10,477.20

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Solution

The fourth proportional to 31,535.76, 47,300.40 and 10,477.20 is: 15,714.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,535.76 : 47,300.40 = 10,477.20 : x
  2. Step 2: Convert to fraction form
    31,535.76/47,300.40 = 10,477.20/x
  3. Step 3: Cross multiply
    31,535.76x = 47,300.40 × 10,477.20
  4. Step 4: Simplify right side
    31,535.76x = 495,575,750.88
  5. Step 5: Solve for x
    x = 495,575,750.88/31,535.76
  6. Step 6: Final answer
    x = 15,714.72

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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.