Home / 42,567.90-63,854.73-12,988.38

Finding the Fourth Proportional to 42,567.90, 63,854.73 and 12,988.38

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Solution

The fourth proportional to 42,567.90, 63,854.73 and 12,988.38 is: 19,483.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,567.90 : 63,854.73 = 12,988.38 : x
  2. Step 2: Convert to fraction form
    42,567.90/63,854.73 = 12,988.38/x
  3. Step 3: Cross multiply
    42,567.90x = 63,854.73 × 12,988.38
  4. Step 4: Simplify right side
    42,567.90x = 829,369,498.04
  5. Step 5: Solve for x
    x = 829,369,498.04/42,567.90
  6. Step 6: Final answer
    x = 19,483.45

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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.