Home / 31,521.15-47,258.10-19,038.31

Finding the Fourth Proportional to 31,521.15, 47,258.10 and 19,038.31

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Solution

The fourth proportional to 31,521.15, 47,258.10 and 19,038.31 is: 28,543.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,521.15 : 47,258.10 = 19,038.31 : x
  2. Step 2: Convert to fraction form
    31,521.15/47,258.10 = 19,038.31/x
  3. Step 3: Cross multiply
    31,521.15x = 47,258.10 × 19,038.31
  4. Step 4: Simplify right side
    31,521.15x = 899,714,239.67
  5. Step 5: Solve for x
    x = 899,714,239.67/31,521.15
  6. Step 6: Final answer
    x = 28,543.19

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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.