Home / 31,547.81-47,390.43-19,073.71

Finding the Fourth Proportional to 31,547.81, 47,390.43 and 19,073.71

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Solution

The fourth proportional to 31,547.81, 47,390.43 and 19,073.71 is: 28,652.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,547.81 : 47,390.43 = 19,073.71 : x
  2. Step 2: Convert to fraction form
    31,547.81/47,390.43 = 19,073.71/x
  3. Step 3: Cross multiply
    31,547.81x = 47,390.43 × 19,073.71
  4. Step 4: Simplify right side
    31,547.81x = 903,911,318.60
  5. Step 5: Solve for x
    x = 903,911,318.60/31,547.81
  6. Step 6: Final answer
    x = 28,652.11

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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.